Which of the following is not an improper fraction?
select one:
a. 20/10
b. 13/−14
c. π/3
d. 7/7

C

Step-by-step explanation:

numerator is bigger than denumerator

П=3,14

6.28 feet

Step-by-step explanation:

1.) Find the radius.

The area is given, and the formula for area of a circle is A =  Let's substitute.

3.14 =

Divide by pi on both sides

1 =

Find the square root of r

1 = r

The radius is 1.

2.) Find the circumference.

C =

C =

Multiply 2 and 1

C =

C ≈ 6.28

The circumference is approximately 6.28 feet.