Question

What is the circumference of the circle shown below, given that the length of

Answer 1

Answer:

A

Step-by-step explanation:

The following ratio is true for any circle

$\frac{arc}{C}$ = $\frac{centralangle}{360}$ ← C is circumference

$\frac{4}{C}$ = $\frac{30}{360}$ ( cross- multiply )

30C = 1440 ( divide both sides by 30 )

C = 48 → A