Question

What is the approximate area of the circle shown below?

Answer 1

Area = pi * radius²
Area = 3.14159 * 9²
Area = 3.14159 * 81
Area = 254.46879
answer is D

Answer 2

Answer: The correct option is D.

Explanation:

From the given figure it is noticed that the point C is the center of the circle and the length of the diameter is 18 cm.

We know the diameter is twice of the radius,

$2r=d$

$2r=18$

$r=9$

Therefore, the radius of the circle is 9 cm.

The formula to find the area of the circle is,

$A=\pi r^2$

$A=\pi (9)^2$

$A=\pi (81)$

$A=254.469\approx 254$

Therefore, the D is the correct option. The area of the circle is 254 cm square.