Matematika

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1 Jawaban

  • sudut lingkaran full 360

    1 . [tex] \frac{100}{360} [/tex] x 3,14 x 6² = 31,4

    2. [tex] \frac{25}{360} [/tex] x 3,14 x [tex] r^{2} [/tex] = 31,4
        r² = 31,4 x [tex] \frac{360}{25} [/tex] ÷ 3,14
        r² = 144
        r = 12

    3. [tex] \frac{x}{360} [/tex] x 90² x 3,14 = 8478
        [tex] \frac{x}{360} [/tex] = 8474 ÷ 3,14 ÷ 8100
        [tex] \frac{x}{360} [/tex] = 0.3308
        x = 0.3308 x 360
        x = 120