Question

The radius of a circle with an area of 60 square centimeters is represented by the expression √60/π centimeters. What is another way of expressing the radius? 
A. 2√15π
B. 4√5π
C. 2√15π/π
D. 4√5π/π

Answer 1

Answer:

r= 2 √(15/π)

Step-by-step explanation:

Given that :

Area of circle =60sq cm

radius=√60/π

$Area=\pi r^2\\60=\pi r^2\\\\\sqrt{\frac{60}{\pi}}=r\\\\\sqrt{\frac{15\times 4}{\pi}}=r\\2\sqrt{\frac{15}{\pi}}=r$

Hence the radius can be written as 2 √(15/π)