2 years ago

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

Mathematics

2 answers:

inna [77]2 years ago

4 0

Answer:

One fourth

Step-by-step explanation:

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

ElenaW [278]2 years ago

3 0

Answer:

1/5

Step-by-step explanation:

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

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vesna_86 [32]

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