Question

The area of a circle is 2,826 square centimeters. What is its diameter?

Answer 1

C

Explanation:

The answer is C

Answer 2

Formula to find the area of circle is:

a=πr² Where a= area and r= radius of the circle.

Given area: a=2,826 square centimeters.

So, plug in a=2,826 in the above equation to get r.

2826=πr²

`(2826)/(\pi) = (\pir^(2))/(\pi)` Dividing each sides by π.

`(2826)/(3.14) =r^(2)` Since π=3.14

900=r²

√900=r

r=30

Since the diamter is twice the radius.

Hence, diameter= 2*30= 60.

So, the diameter of the circle is 60 centimeters.

900=