3 years ago

Need help with this NOW plzzzzz!!!!

1 answer:

3 0

Hello!

The circumference is the diameter multiplied by pi, or the distance around a circle. Since we already have the circumference, and need to find the diameter, we will divide the circumference by pi(3.14).

113.04/3.14=36

The diameter of the circle is 36 units.

I hope this helps!

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

inna [77]

Answer:

One fourth

Step-by-step explanation:

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