Question

derivation of the formula of area of circle($\pi r^{2}$)

Answer 1

Suppose a circle has a radius 'r' then the area of circle = πr2 or πd2/4 in square units, where π = 22/7 or 3.14, and d is the diameter. Area of a circle can be calculated by using the formulas: Area = π × r2, where 'r' is the radius. Area = (π/4) × d2, where 'd' is the diameter.

Answer 2

$\sf{ \bold{Answer: }}$

Area of a circle is the region occupied by the circle in a two-dimensional plane. It can be determined easily using a formula, A = πr², (Pi r-squared) where r is the radius of the circle. The unit of area is the square unit, such as m², cm², etc.

${ \bold{AREA OF THE CIRCLE = πr²}}$