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L2 = 1/4 Lingkaran
L1 = p× l
L1 = 14 × 30
L1 = 420 cm²
L2 = ¼ .π.r²
L2 = ¼ . 22/7 . 14²
L2 = ½ . 11/7 . 196
L2 = ½ . 11 . 28
L2 = 154 cm²
jadi luas yang diarsir : L1 + L2 = 420+154 = 574 cm²
di teliti lagi yah kaka