Find the exact circumference of a circle with the given radius. 7 feet c = a. 7π ft. b. 14π ft. c. 27π ft.

The formula in computing the circumference of a circle is:

C = 2πr
Where: r = the radius of the circle

Substituting the given measurement of radius to the formula:
C = 2 (π) (7 feet)
C = 14π feet
Therefore, the circumference of the circle is 14π ft.

 

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.