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= 10 × 16
= 160 cm².
L. segitiga = a × t / 2
= ( 16-12 ) × 6 / 2
= 4 × 6 / 2 = 24 / 2 = 12 cm².
L. Total = 160 cm² + 12 cm²
= 172 cm²
semoga membantu dan maaf kalau salah.