Question

The area of a circle (to the nearest whole number) whose radius is 4cm

Answer 1

Step-by-step explanation:

Formula for Area of a Circle is = Pi × radius × radius

Taking pi = 22 / 7

(22/7)× 4 ×4

50.26

Its nearest to 50 Square cm

Answer 2

$\sf \: radius = 4 \: cm \\ \\ \sf \: area \: of \: circle = \pi {r}^{2} \\ \\ \sf \: area \: of \: circle = \frac{22}{7} \times 4 \times 4 \\ \\ \sf \: area \: of \: circle \: = 50.24 \: {cm}^{2} \\ \sf \: area \: of \: circle \approx \: 50 \: {cm}^{2}$