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Verified answer
Jawab :L.lingkaran = πr²
= 3,14 . 8 . 8
= 200.96 cm²
L.juring OAB = 90°/360° . 200.96
= 1/4 . 200.96
= 803.84 cm
L.segitiga = a . t/2 = 8 . 8/2 = 64/2 = 32
L.diarsir (Tembereng) = L.juring - L.segitiga
= 803.84 - 32
= 771.84 cm²