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

Guest Aug 23, 2017

Best Answer 

 #1
avatar+554 
+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.

The radius is about 3 inches.

Gh0sty15  Aug 23, 2017
 #1
avatar+554 
+1
Best Answer

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.

The radius is about 3 inches.

Gh0sty15  Aug 23, 2017
 #2
avatar+90023 
0

 

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

 

 

cool cool cool

CPhill  Aug 23, 2017

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