The formula for area of a circle can be found by using a parallelogram explain the way to derive the formula

The circle can be cut into slices, separated, and fit together to form a parallelogram that has the same area. The height of the parallelogram is the radius and the base is half the circumference, which is

Step-by-step explanation:

The base and height of the parallelogram describe the parts of the circle. Let us consider B as base and H as the height of the parallelogram. Base b is equal to half of the circumference of the circle. To determine the area of the circle, substitute r for h and πr for b in the area formula by considering r as the radius of the circle. Therefore, the formula to find the area of a circle is πr² square units.