Question

What is the ratio of the sector area to the area of the entire circle?

Answer 1

Answer:

One fourth

Step-by-step explanation:

$\frac{area \: of \: sector}{area \: of \: circle} = \frac{ \frac{ 90 \degree}{360 \degree } \times \pi {r}^{2}}{ \pi {r}^{2}} \\ = \frac{ \frac{1}{4} \times 1}{1} \\ = \frac{1}{4} \\ = 1 : 4$

Answer 2

Answer:

1/5

Step-by-step explanation:

the angle is 72 degrees, ratio is 72:360, simplified is 1/5