tolong pakai caranya no. 22

22) L 1/6 lingkaran = 1/6 x r² x π
                               = 1/6 x 24 x 24 x 3,14
                               = 301,44 cm²

      L segitiga = a x t / 2
                       = 24 x 24 / 2
                       = 288 cm²

      L yang diarsir = L 1/6 lingkaran - L segitiga
                             = 301,44 - 288
                             = 13,44 cm²

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