How do you find the area of a rectangle with the diameter?

To find the area of your entire rectangle, you need to solve for Area = length x width, or A = l x w. Now that you’ve used the Pythagorean Theorem to find the second side length, you can solve for the area.

How do you convert diameter to rectangle?

Changing a Circle to a Rectangle

1. Radius. R = D ÷ 2 where R = radius, D = diameter.
2. Area; A = π * D² ÷ 4 where A = area, π = 3.14159…, D = diameter.
3. Circumference; C = 2 * π * D ÷ 2 where C = circumference, π = 3.14159…., D = diameter.
4. Area. A = length * width.
5. Length.
6. Perimeter.

How do you calculate area from diameter?

The formula for calculating the area of a circle is A = π​r​2 where pi (π) equals 3.14 and the radius (​r​) is half the diameter.

What is the formula for the diameter of a rectangle?

You can use the Pythagorean theorem to estimate the diagonal of a rectangle, which can be expressed with the following formula: d² = l² + w² , and now you should know how to find the diagonal of a rectangle explicit formula – just take a square root: d = √(l² + w²) .

What is a diameter rectangle?

The diameter of a rectangle is the length of a diagonal, or either of two long lines that join opposite corners. A diagonal divides a rectangle into two identical right angle triangles. In mathematics, the diagonal of a right angle triangle is called the hypotenuse.

Can we find area of rectangle with diagonal?

You can’t. Both rectangles have the same diagonal but different areas. In fact, for any rectangle with diagonal d (which is known), we can find length and width as follows: This is simply the equation of a circle with radius .

What is 2pi R?

2 pi r is the way to find the circumference when you have the radius.

How do you find a circle’s area?

The area of a circle is pi times the radius squared (A = π r²). Learn how to use this formula to find the area of a circle when given the diameter.

What is area of the rectangle?

The area of a rectangle (A) is the product of its length ‘a’ and width or breadth ‘b’. So, Area of Rectangle = (a × b) square units.

What is the diagonal formula of rectangle?

In the diagonal of a rectangle formula, ‘w’ refers to the width of the rectangle. The formula is given as, d = √( l2 + w2), where, l is length of the rectangle and w is width of the rectangle.

How do you calculate a diameter?

How To Calculate Diameter?

1. Diameter = Circumference ÷ π (when the circumference is given)
2. Diameter = 2 × Radius (when the radius is given)
3. Diameter = 2√[Area/π] (when the area is given)