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Dmitry_Shevchenko [17]

3 years ago

7

PLEASE HELP ASAP!! Don't just state the answer, I'd like to actually learn something. Thanks :)

1 answer:

Xelga [282]3 years ago

8 0

The area of a circle = PI * radius^2
area = 3.14159 * 16
area = <span> <span> <span> 50.265
</span></span></span><span>area = <span> PI * 16</span></span>

<span>We have to determine the area of the shaded section, which is (3 / 4) of the circle. The unshaded section is occupied by a 90 degree angle which is (1 / 4) of a circle (All circles contain 360 degrees).
So the shaded section =
</span>50.265 * (3 / 4) = <span>37.699</span>
OR
16 * PI * (3 / 4) = 12 * PI

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