Question

What is the circumference of the circle if r = 3.5 feet? Use 22 7 for π. A) 5.5 feet B) 11 feet C) 22 feet D) 38.5 feet

Answer 1

The answer is C.22

Explanation:

Using the formula C = 2πr or C = πd, the circumference of the circle above is 22 feet.

Answer 2

Well, to find the circumference of a circle, we can use the formula
C=2
`\pi`r.
So just plug in 3.5 into the formula.
C=2
`\pi`3.5.
Multiply and we get C=21.99. which is about 22
So our answer would be C. 22 feet.
Hope I helped!