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9 October, 11:45

Use the fact that the length of an arc intercepted by an angle is proportional to the radius to find the area of the sector given r = 3 cm and Θ =

π

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  1. 9 October, 13:13
    0
    area = (9/8) π cm²

    Step-by-step explanation:

    That proportionality gives rise to the area formula ...

    A = (1/2) r²Θ

    Filling in the given values, we have ...

    A = (1/2) (3 cm) ² (π/4) = 9π/8 cm²

    The sector area is 9π/8 cm².
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