Matematika

Pertanyaan

nomor 3 pakai cara ya
nomor 3 pakai cara ya

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  • s = √24²+7² = √576+49 = √625 = 25 cm

    Lp = πrs + 2πr²
    = πr(s+2r)
    = 22/7 x 7 x ( 25 + 2x7)
    = 22 x 39
    = 11 x 78
    = 858 cm²
    A

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