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17 May, 20:21

A sector with a radius of 15 cm has a central angle measure of 8π/5 what is the area of the sector

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  1. 17 May, 20:51
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    area of the sector = 360π cm²

    Step-by-step explanation:

    To calculate the area of the sector, we will follow the steps below;

    First write down the formula for calculating the area of a sector.

    If angle Ф is measured in degree, then

    area of sector = Ф/360 * πr²

    but if angle Ф is measured in radians, then

    area of sector = 1/2 * r² * Ф

    In this case the angle is measured in radiance, hence we will use the second formula

    From the question given, radius = 15 cm and angle Ф = 8π/5

    area of sector = 1/2 * r² * Ф

    =1/2 * 15² * 8π/5

    =1/2 * 225 * 8π/5

    =360π cm²

    area of the sector = 360π cm²
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