Question

what is the area of a circle whose radius is 7cm

Answer 1

area of circle =22/7 ×7×7=154cm2

Answer 2

Answer:

Concept:

The area of the circle can be calculated by using the radius.

Step-by-step explanation:

Given:

Radius = 7cm

Find:

The area of the Circle (a)

Solution:

We have the formula to find the area of the circle by using radius, that is

$\\A=\pi r^{2}\\\\=\pi \cdot 7^{2} \\\approx 153.93804 \mathrm{~cm}^{2}$

After substituting the pie($\pi$) value

So The area of circle whose radius is 7cm is $153.93804 \mathrm{~cm}^{2}$ (approximate value)

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