Rectangle perimeter: P = 2 x w + 2 x l 2. Sometimes, you may only get two measurements, and you have to use different formulas to work it out from there.įirstly, we’ll cover the three equations you will need for the rectangle’s perimeter, area, and the circumcircle radius.ġ. What is the Formula for Finding the Diagonal of a Rectangle? You are not always going to have all the appropriate measurements for working out the diagonal of a rectangle handed to you on a plate. ![]() You can also use the diagonal of a rectangle calculator to measure in various units using SI and imperial. ![]() Then, to get the exact formula for finding the diagonal of a rectangle, take a square root. You also use the Pythagorean theorem to receive an approximate diagonal measurement: All triangles will have a length ( l) and width ( w) and a hypotenuse of ( d) for the length. The formula involves dividing your rectangle into its two congruent right triangles – with at least one 90-degree angle. ![]() How Do You Find the Diagonal of a Rectangle? Using a diagonal of a rectangle calculator makes the entire process effortless as long as you have other measurements, but you can also use the diagonal of a rectangle formula. You may not know that a square is also a particular type of rectangle. A rectangle also has two intersecting diagonals which are also the same length. From this name, you can determine that a rectangle is a quadrilateral with four right angles – two of which are parallel and of equal length. The word rectangle is derived from two Latin words – rectus (meaning right or proper) and angulus (meaning angle). All of these components help to create the shape itself. To determine the diagonal of a rectangle, you can use the length, width, angle, circumcircle, area, and perimeter measurements. Fortunately, as long as you have the other parameters of a rectangle, you can find the diagonal measurement – and others - using this calculator tool. For example, if we have that the area of a rectangle is equal to 100 square meters and the proportions of its sides are 5:20, we know that one of its sides is 5 meters and the other is 20 meters.When you want to find out the diagonal of a rectangle, it can be a complicated process to do so by hand. Thus, the length of the other side is 5 metersĪlternatively, we can find the length of the sides of a rectangle if we know its area and the proportions of its sides. In the case of a rectangle with different side lengths, this is a bit more complicated since we need to know the area and one of its sides to calculate the length of the other side.įor example, if the area of a rectangle equals 100 square meters and one of its sides is 20 meters, we simply divide 100 by 20 to get the length of the other side. Therefore, if we have the area of a square, we can calculate its sides by taking the square root of the area.įor example, if we have that the area of a square is 100 square meters, we can take the square root to obtain 10 meters, which is the length of its sides. In the case of a square, this becomes very easy since a square is a special case of a rectangle that has all its sides equal, so its area is equal to one of its sides squared. The formula for the area of a rectangle is A = base × height. If we know the area of a rectangle, we can calculate its sides using the formula for the area of a rectangle. How to calculate the sides of a rectangle knowing the area? Therefore, the area of the rectangle will be equal to the sum of the areas of these two triangles. In the rectangle below, its diagonal divides it into two equal right triangles. Why is the area of a rectangle equal to base times height? Step 3: Write the answer in square units. Step 2: Multiply the base and height values. Step 1: Identify the dimensions of the base and the height from the given information. We can find the area of a rectangle by following these steps: How to calculate the area of a rectangle? ![]() By multiplying the base times the height, the area of the rectangle gets dimensions in square units. The area of any rectangle is calculated once its base and height are known. Since all the sides in a square are equal, the area of the square will be equal to the length of one of its sides squared. The square is a special case of a rectangle, which has all equal sides. Therefore, we can say that the region enclosed by the perimeter of the rectangle is its area. On the other hand, when we talk about the perimeter of the rectangle, we know that it is equal to the sum of its four sides. Basically, the formula for the area is equal to the product of the base and the height of the rectangle. The area of a rectangle depends on its sides. The formula for calculating the area of a rectangle is A=Base×Height. What is the formula to find the area of a rectangle?
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