jwbnnyh 384 cm^2.........
Diketahui:
Ditanya:
Luas permukaan limas = ...?
Penyelesaian:
- Mencari sisi (s)
L.alas = s²
144 cm² = s²
√144 cm² = s
12 cm = s
- Sisi tegak limas
= √((6 cm)² + (8 cm)²)
= √(36 cm² + 64 cm²)
= √100 cm²
= 10 cm
- Luas permukaan limas
= L.alas + Total luas sisi tegak
= 144 cm² + 4 (1/2 . 12 cm . 10 cm)
= 144 cm² + 240 cm²
= 384 cm²
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jwbnnyh 384 cm^2.........
Diketahui:
Ditanya:
Luas permukaan limas = ...?
Penyelesaian:
- Mencari sisi (s)
L.alas = s²
144 cm² = s²
√144 cm² = s
12 cm = s
- Sisi tegak limas
= √((6 cm)² + (8 cm)²)
= √(36 cm² + 64 cm²)
= √100 cm²
= 10 cm
- Luas permukaan limas
= L.alas + Total luas sisi tegak
= 144 cm² + 4 (1/2 . 12 cm . 10 cm)
= 144 cm² + 240 cm²
= 384 cm²