Question

The image below is a triangle drawn inside a circle with center O: Which of the following expressions shows the area, in square inches, of the circle? 3.14 •2 3.14 • 3 3.14 • 2² 2 • 3.14 • 2²

Answer 1

Option B is correct that is 3.14 . 2²

Explanation:

We are given a figure of circle with center O.

From figure.

Length of the diameter of the circle = 4 inches.

⇒ Radius of the circle, r = 4 /2 = 2 inches.

Area of the circle is given by following formula,

`Area\:of\:circle=\pi r^2`

by putting value of π = 3.14 and radius, r = 2

we get,

`Area\:of\:circle=3.14*2^2`

Therefore, Option B is correct that is 3.14 . 2²

Answer 2

we know that
[area of a circle ]=pi*r²
diameter=4 in
r=4 in/2-----> 2 in

so
area=pi*2²-----> area of the circle=4*pi in²

the answer is
the area, in square inches, of the circle is 3.14 • 2²