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2 August, 00:16

A sector of a circle has a central angle of 45. Find the area of the sector if the radius of the circle is 15 cm.

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  1. 2 August, 02:02
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    A = 28.125 * pi cm^2

    A = 88.357 cm^2

    Step-by-step explanation:

    Area of a sector is 1/2 r^2 theta where theta is in radians

    convert 45 degrees to radians

    theta = 45 * pi/180 = pi/4

    A = 1/2 * 15^2 * pi/4

    A = 1/2 * 225 * pi/4

    A = 28.125 * pi cm^2

    A = 88.357 cm^2
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