+0

# Calculate the radius with the area

0
54
2

calculate the radius of Circle M if the area is 28.26 square inches

Guest Aug 23, 2017

#1
+351
+1

Well, we know that the equation for getting the area of a circle is π*r^2.

In this case, we are trying to find the radius.

The equation would be:  28.26=  π*r^2.

Divide both sides by pi to get 28.26/π = r^2

Square root both sides to get sqrt(28.26/π)=r.

Plug sqrt(28.26/π) into a calculator.

You round that answer to the nearest hundredth and you get 3 inches.

Gh0sty15  Aug 23, 2017
Sort:

#1
+351
+1

Well, we know that the equation for getting the area of a circle is π*r^2.

In this case, we are trying to find the radius.

The equation would be:  28.26=  π*r^2.

Divide both sides by pi to get 28.26/π = r^2

Square root both sides to get sqrt(28.26/π)=r.

Plug sqrt(28.26/π) into a calculator.

You round that answer to the nearest hundredth and you get 3 inches.

Gh0sty15  Aug 23, 2017
#2
+76108
0

Good job, Gh0sty.....!!!!

CPhill  Aug 23, 2017

### 9 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details