Question

The diameter of a circle is 8 kilometers. What is the circle's area?
d=8 km
Use 3.14 for ​.

Answer 1

Step-by-step explanation:

Area of circle is given by

$\pi(r) {}^{2}$

where R = 8km = 8000m

Area =

$\frac{22}{7} \times 8000$

$3.14 \times 8000$

$25120 \: {m}^{2}$

Answer 2

Radius = diameter/ 2
= 4km
Area formula = 3.14 X radius square
4 square = 16
3.14 X 16
50.24km^2