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luas bangun BFDC = 10+6×(15-8)×1/2 =10+6×(7)×1/2=16×7×1/2=112×1/2=56
48+56= 104
= 48 cm^2
L. BCDF (Trapesium) = (10+6)x7/2
= 16x7 /2
= 56cm^2
L. Bangun Seluruhnya = 48 + 56
= 104 cm^2