lihat gambar yg di lampirkan ,,,
luas yg tidak di arsir = L3
L3 = 1/2 × 4 × 2
L3 = 4 cm²
L1 + L3 = 1/2 × 8 × 4
L1 + 4 = 16
L1 = 16 - 4
L1 = 12 cm²
L2 + L3 = 4 × 5
L2 + 4 = 20
L2 = 20 - 4
L2 = 16 cm²
luas yg di arsir adalah
L1 + L2 = 12 + 16 = 28 cm²
jawaban nya : B. 28 cm²
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lihat gambar yg di lampirkan ,,,
luas yg tidak di arsir = L3
L3 = 1/2 × 4 × 2
L3 = 4 cm²
L1 + L3 = 1/2 × 8 × 4
L1 + 4 = 16
L1 = 16 - 4
L1 = 12 cm²
L2 + L3 = 4 × 5
L2 + 4 = 20
L2 = 20 - 4
L2 = 16 cm²
luas yg di arsir adalah
L1 + L2 = 12 + 16 = 28 cm²
jawaban nya : B. 28 cm²