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d 1 = 9 + 9 = 18
d 2 = 15 + 7 = 22
= 1/2 × 18 × 22 = 9 × 22 = 198 cm²
semoga membantu ^^
= 1/2 x 15 x 9
= 135 : 2 = 67,5 cm²
SEMOGA MEMBANTU.....