1/2 kali 30 kali 12 =15 kali 12 =180cm3 rumus luas segitiga adalah 1/2 kali alas kali tinggi
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L = 1/2× alas × tinggi
L = 1/2×30×12
L = 15×12
L = 180 cm²
1/2 kali 30 kali 12 =15 kali 12 =180cm3 rumus luas segitiga adalah 1/2 kali alas kali tinggi