Penjelasan dengan langkah-langkah:
BC = √AB² - AC²
= √20² - 16²
= √400 - 256
= √144 = 12 cm
L = 2 × luas alas + keliling alas × tinggi
= 2 × 1/2 × 20 × 16 + (20+16+12) × 30
= 320 + (48) × 30
= 1.760 cm²
Semoga membantu
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Penjelasan dengan langkah-langkah:
BC = √AB² - AC²
= √20² - 16²
= √400 - 256
= √144 = 12 cm
L = 2 × luas alas + keliling alas × tinggi
= 2 × 1/2 × 20 × 16 + (20+16+12) × 30
= 320 + (48) × 30
= 1.760 cm²
Semoga membantu
Follow ya..