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Jawaban:
Cari tinggi segitiga dgn rumus phytagoras
t = √17²-15²
= √289 - 225
= √64
= 8 cm
L persegi= s x s
= 8 x 8 = 64 cm²
L segitiga = ½ x a x t = ½ x 15 x 8 = 60 cm²
L bangun datar = 64 + 60 = 124 cm²
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