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13 September, 14:23

The shaded region above represents 3/4 of the circle. If the radius of the circle is 3 inches, what is the perimeter of the sector in terms of?

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  1. 13 September, 16:16
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    To find the perimeter of the sector (3/4 of the circle) you will find what 3/4 of the circumference of the entire circle would be and then add the radius twice (for each of the two straight sides).

    Here are the steps:

    1. C = 3/4 x pi x d

    0.75 x 3.14 x 6 in

    C (3/4 of it) = 14.13 inches.

    2. 14.13 inches + 3 inches + 3 inches = 20.13 inches

    The perimeter of the sector is approximately 20.13 inches.
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