Luas segitiga = 1/2 × a × t = 1/2 × ( 9 + 6 ) × 20 = 1/2 × 15 × 20 = 15 × 10 = 150cm2
Luas segitiga yang tidak diarsir = 1/2 × a × t = 1/2 × ( 9 + 6 ) × 10 = 1/2 × 15 × 10 = 15 × 5 = 75cm2
luas segitiga yang tidak diarsir = 150 - 75 = 75cm2
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Luas segitiga = 1/2 × a × t = 1/2 × ( 9 + 6 ) × 20 = 1/2 × 15 × 20 = 15 × 10 = 150cm2
Luas segitiga yang tidak diarsir = 1/2 × a × t = 1/2 × ( 9 + 6 ) × 10 = 1/2 × 15 × 10 = 15 × 5 = 75cm2
luas segitiga yang tidak diarsir = 150 - 75 = 75cm2
100% maaf kalau salah