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julsineya [31]
3 years ago
10

Please help!!! Im trying to bring my math grades up!!!

Mathematics
1 answer:
liubo4ka [24]3 years ago
4 0

Answer:

314

Step-by-step explanation:

To find the area of a circle using the diameter, use this formula:

A=\frac{1}{4}\pi d^2

Substitute the diameter and the value of pi:

A = \frac{1}{4}*(3.14) * (20)^2

A = 0.785 * 400

A = 314

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5.
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  (E) 90°

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