Learn more... A rectangle is a quadrilateral[1] In this example, the length is 8 cm and the width is 5 cm. Below is the step by step descriptive logic to find area of rectangle - Input length and width of rectangle. 8 × 5 = 40 and the units for the area of this rectangle are cm2. It’s the size of a 2-dimensional surface and is measured in square units, for example, square feet. Since there are 60 of the 1 cm2 squares, the total area of the rectangle is 60 cm2. The area is calculated by multiplying the length of the rectangle by its width. The formula for the area of a square is Area = Side Length × Side Length. Author and Editor for programming9, he is a passionate teacher and blogger. or 20 cm^2. So, what do you think we need to do with these two numbers in order to find our area? Finding area using a grid. What is Area of Rectangle? The 4 angles present in the rectangle are also equal. Author: RajaSekhar. A = 9 × 4 = 36. Surface Area Of A Rectangular Prism Formula. A rectangle is a quadrilateral with four right angles. The equation for finding the area of a rectangle is simply A = L * W. This means that the area is equal … If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. How can I find the area of a rectangle if I only know the diagonal? You cannot find an area in meters, because area is expressed in square meters. Area = Length × \(\sqrt{Diagonal^2 – Length^2}\) Or. Here is the output of the above program. Now, the area of rectangle = Length × Width. The area of a shape is a measure of the two dimensional space that it covers. Add together the lengths of all the sides to find it. How do I find the area of a rectangle when each side is a different length? Explanation: . Solution to Example 1 Since the the length L and the width W have the same units, we apply the formula given above substituting L and W by their values as follows A = L × W = 35 × 20 = 700 square meters (or m 2) Example 2 A rectangle field has a length of 360 inches and a width of 300 inches. The units for the area are cm2 since we measured the sides in centimetres. The length of a rectangle is the longest side and the width is the shortest side. A rectangle has 2 sides of equal length and 2 sides of equal width (breadth). To quickly calculate the area of a rectangle, find the length of the base. The area of a rectangle tells us how many unit squares can fit inside it. The formula for the area of a rectangle is Area = Length × Width. Because a square is a type of rectangle, the formula for calculating the area of a square is the same as the formula for calculating the area of a rectangle. To find the area of a rectangle, multiply the length times the width! A rectangle can be defined as the plain figure with two adjacent sides equal in length. Provided below are equations for some of the most common simple shapes, and examples of how the area of each is calculated. Recall that a rectangle’s area, A A, in square units is width (w) × length (l) w i d t h ( w) × l e n g t h ( l), and perimeter, P P, is 2(w + l) 2 ( w + l), in linear units derived from the area units. Next, do the other two rectangles (Cheat: They're always the same area as the base!) Measuring the length or width in a given unit of measurement tells us how many of these units can fit in this direction. Solved: Find the value of x if the area of the rectangle is equal to 238. Java Program to Find Area of Rectangle Using Method Overloading. How to Find the Area of a Rectangle. $ ./area.sh Enter the width and height of rectangle in meters: 3.5 4.5 Area of the rectangle is: 15.75 Square Meters or 24412.50 Square Inches. Square feet can also be expressed as ft 2 or sq. How to find the AREA OF A RECTANGLE: THE EASY WAY! And as well as definitions of area rectangle and formulas to find the area of rectangle. % of people told us that this article helped them. In other words, the area of a rectangle is the product of its length and width. The area of a rectangle can be calculated by counting the number of small full squares of dimension 1 * 1 sq. The area of a rectangle is equal to its length multiplied by its width. Below is a unit square with length 1 cm. For example, for a rectangle of length 8 cm and width 5 cm, the area is 8 cm × 5 cm = 40 cm2. Helpful 0 Not Helpful 0. There is no such thing as an irregular rectangle. Area of a rectangle. A rectangle can be divided into 4 similar square. How can I find the length of a rectangle if given only the area and width? All rectangles are made of two sets of parallel lines, and each rectangles has four 90-degree angles. C++ Examples. If a rectangle has a base of length 6 inches and a height of 4 inches, its area is 6*4=24 square inches; Return to Top. When you have a cube, finding the area of one face allows you to find the total surface area of the solid very quickly, since it will be six times the area of one face. Area is measured in square units such as square inches, square feet or square meters. The formula used to find the area of a rectangle is A = l * w. The formula used to find the perimeter of a rectangle is P = 2 * (l + w) In the above formulas, A stands for “area,” P stands for “perimeter,” l refers to the length of the rectangle, and w refers to the width of the rectangle. We can see that there are 6 rows because the width is 6 cm long. If the height and width are in cm, the area is shown in cm². The theorem is: a^2 + b^2 = c^2, where a and b are sides of the triangle and c is the hypotenuse, or longest side. Thanks! Here is a square with a side length of 3 m. A square is a special type of rectangle that has all of its sides the same length. How to find the area with diagonal of rectangle and width Formula: Area = \(Width\ \sqrt{(Diagonal^2 – … https://www.mathsisfun.com/quadrilaterals.html, https://www.khanacademy.org/math/basic-geo/basic-geo-area-and-perimeter/area-formula-intuition/e/finding-area-by-multiplying, https://www.khanacademy.org/math/basic-geo/basic-geo-area-and-perimeter/area-formula-intuition/v/transitioning-from-counting-to-multiplying-to-find-area-3rd-grade-khan-academy, https://www.mathsisfun.com/pythagoras.html, https://www.mathopenref.com/rectanglediagonals.html, De oppervlakte van een rechthoek berekenen, consider supporting our work with a contribution to wikiHow. You will see the units written as … Where l is length and w is width of the rectangle. In this lesson, we find areas of rectagular figures that have fractional lengths and widths. The 4 angles present in the rectangle are also equal. wikiHow is where trusted research and expert knowledge come together. Write two equations, one for the area and one for the perimeter, both in terms of length and width. The length of a rectangle is the longest side and the width is the shortest side. All tip submissions are carefully reviewed before being published. Also, explore the surface area or volume calculators, as well as hundreds of other math, finance, fitness, and health calculators. Write down the formula for the area of a rectangle, A = l x w. In the formula for area (A), l is the length and w is the width of the rectangle. Area and perimeter of rectangle in C: Here, we are going to learn how to find the area and perimeter of a rectangle using C program, where length and breadth are given. 6 lots of 10 is written as 6 × 10, which equals 60 squares. Be sure to include the units of the measurements in your answer. Irregular shapes would often be broken down to a series of rectangles so that their area can be approximately calculated. Thanks! 49.4k 6 6 gold badges 82 82 silver badges 138 138 bronze badges. To find the area of rectangle we multiple the length and width of rectangle and store area in a floating point variable. We simply multiply 6 by 6. Finding the area of a rectangle can actually be quite simple as long as you have two important pieces of information. This article has been viewed 486,226 times. Finding surface area for all rectangular prisms (including cubes) involves both addition and multiplication. The perimeter is measured in units such as centimeters, meters, kilometers, inches, feet, yards, and miles. To find the area of a rectangle, you multiply the A side by the B side. By signing up you are agreeing to receive emails according to our privacy policy. How do I calculate the area of an irregular rectangle? How can I find the length and width of a rectangle with only the perimeter and area? If you're finding area, your answer will always be squared. If all you know is the length of the diagonal, you can calculate the area of a square, but not a rectangle. If a rectangular figure has length and width of $\frac{a}{b}$ and $\frac{c}{d}$ where a, b, c and d are whole numbers, then the area of the rectangular figure is given by If both the sides are labeled with that same number, then it is a square. next article. To find the area of a rectangle, multiply the length by the width. The units for area can be any unit for the measure of length squared: feet squared, meters squared, centimeters squared, etc. Drawing a vertical line at the end of the side of length divides the shape into a rectangle and a right triangle. By definition, the object in which you are describing is not a rectangle. This equation is represented by A=L*W. If you have only the area and width, you can use the same equation to solve for the area. The calculator will take care of the conversion of values entered in different units. If you're seeing this message, it means we're having trouble loading external resources on our website. This shape looks much more complicated than a rectangle, but the method of working out the perimeter is exactly the same. Find the area of this rectangle in square kilometers. Program to calculate the area of the rectangle. To find the area of a rectangle, you need to know the diagonal and at least one side length. C++ program to print Floyd triangle. The units for area are units squared. Note that the double hash marks on the long sides of the rectangle mean that the lengths of the two sides are the same. The length of the other side of the triangle, which is also the other side of the rectangle, is 8 cm. By using our site, you agree to our. It then displays the formula for finding the perimeter of the rectangle which is the addition of both bases and both sides. Suppose you know a + b but not a? If I am only given the diagonal of a rectangle how can I find the area?. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area. If you need to find the area if you only know the area or the length of 1 side and a diagonal, keep reading the article! Follow answered Apr 25 '16 at 5:03. cas cas. Use this calculator if you know 2 values for the rectangle, including 1 side length, along with area, perimeter or diagonals and you can calculate the other 3 rectangle variables. It is one of the easiest figures to compute an area for. To find the area of a rectangle, multiply its height by its width. The area is measured in units squared. Find the Area and Perimeter of a Rectangle : ----- Input the length of the rectangle : 10 Input the width of the rectangle : 15 The area of the rectangle is : 150 The perimeter of the rectangle is : 50 Flowchart: C++ Code Editor: Contribute your code and comments through Disqus. How can I find the area of a rectangle with only one number? (1 kilometer = 1000 meters) Solution to Example 4 with two sides of equal length and two sides of equal width that contains four right angles. The area is measured in units units such as square centimeters (cm 2), square meters (m 2) Step by step descriptive logic to find their perimeters from their given areas no area formula for area... But we will separate the Java area of each interior angle in a floating point variable ) or two ''! The units for the area by ( a + b but not a rectangle is 90 degrees starts with. For some of the formula you can find perimeter from the area of the rectangle a web filter please. 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