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7 November, 04:28

Calculo el area del búmeran tomando en cuenta que su diámetro es 20 cm

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  1. 7 November, 07:05
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    50π cm²

    Step-by-step explanation:

    In this case we have that the area of the boomerang has been the area of the largest semicircle minus the area of the smaller semicircles.

    We know that the radius is half the diameter:

    r = d / 2 = 20/2

    r = 10

    Now we have to:

    Alargest = π · r²

    Alargest = π · (10 cm) ²

    Alargest = 100π cm²

    Asmaller = π · r²

    Asmaller = π · (5 cm) ²

    Asmaller = 25π cm²

    Finally, the boomerang area has been:

    Aboomerang = 100π cm² - 2 · (25π cm²)

    Aboomerang = 50π cm²
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