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t segitiga = √8²+6²
= √64 + 36
= √100 = 10cm
Lp = (4x12x10/2) + (12 x 12)
= 240 cm² + 144 cm²
= 384 cm²
semoga bermanfaat :)
Tinggi sisi tegak = √8² + 6² = 10 cm
Lp = La + L sisi tegak
= (12 × 12) + 4 (1/2 × 12 × 10)
= 144 + 240
= 384 cm²