Question

A circle has an area of 50 square meters. Which answer is closest to the measure of its diameter?

Answer 1

The diameter would be 8 meters

Answer 2

we know that
Area of a circle is equal to

`A=pi* r^(2)`
where

`r` is the radius

in this problem we have that

`A=50 m^(2)`

`A=pi* r^(2) \\ r= √(A/pi) \\ r= √(50/pi)`

`r=4 m`

we know that
the diameter is two times the radius
so

`D=2r \\ D=2*4 \\ D=8 m`