Question

The diameter of a circle is 4 cm. Which equation can be used to find its circumference?

C = pi times 2
C = pi times 4
C = StartFraction pi times 4 over 2 EndFraction
C = StartFraction pi times 4 over 4 EndFraction

Answer 1

C = StartFraction pi times 4 over 2 EndFraction.

Step-by-step explanation:

the circumference of a circle=

C= 2 times PI times radius

Radius= d/2

sooo it is

C = StartFraction pi times 4 over 2 EndFraction.

Answer 2

C = StartFraction pi times 4 over 2 EndFraction.

Explanation:

the circumference of a circle=

C= 2 times PI times radius

Radius= d/2

sooo it is

C = StartFraction pi times 4 over 2 EndFraction.