what is the radius of a circle with circumference 73yd? Write the formula in terms of r. Find the radius using the formula C=2(pi)r. Round to nearest tenth.

Question

what is the radius of a circle with circumference 73yd? Write the formula in terms of r. Find the radius using the formula C=2(pi)r. Round to nearest tenth.

Answer 1

Hi Muhammed -

 

For the formula C = 2Πr

C is the circumference

Π is the constant pi = 3.14

r is the radius

 

To find the radius, you would just need to divide both sides of the equation above by Πr

 

That gives:

 

r = C / 2Π

 

From the problem description, the circumference C = 73 yds

As noted above, Π = 3.14

 

Just plug these values in the equation above to give you the radius in yds.

 

Hope this helps.

Answer 2

as c=2∏r

gives r=C⁄ 2∏

as C=73 yards and ∏= 3.14

so r=73/2(3.14)

r=73/6.28

r=11.62

as round to nearest tenth it will be r=10