L. bangun 1
=1/2×a×t
=1/2×8×7
=28cm²
L. bangun 2
=1/2×3×4
=6cm² karena ada dua = 6×2 = 12cm²
L. bangun 3
=4×8
=32cm²
L. seluruhnya = 32+12+28 = 72cm²
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luas trapesium = 1/2 (8+14) x 4 = 44 cm²
total = 72 cm²
L. bangun 1
=1/2×a×t
=1/2×8×7
=28cm²
L. bangun 2
=1/2×3×4
=6cm² karena ada dua = 6×2 = 12cm²
L. bangun 3
=4×8
=32cm²
L. seluruhnya = 32+12+28 = 72cm²