A circle has an area of 40 square meters. Which answer is closest to the measure of its diameter?

Question

asked Jul 3, 2017 85.4k views

2 Answers

Peace · Answer 1 · 2017-07-08T10:53:44+0000

Answer: The correct answer is 7.12 m.

Explanation:

The expression for the area of the circle is as follows;

$A=\pi r^(2)$

Here, A is the area of the circle and r is the radius of the circle.

Calculate the radius of the circle.

$A=\pi r^(2)$

Put A= 40 square meter and
$\pi=3.14$ .

40=(3.14) r^(2)

The expression for the diameter is as follows;

d= 2r

Here, d is the diameter of the circle and r is the radius of the circle.

Put r= 3.56 m.

d= 2(3.56)

d= 7.12 m

Therefore, the closest answer to the measure of the diameter of the circle is 7.12 m.