Jawaban:
6. luas permukaan Limas = luas alas + luas 4 sisi tegak
=> luas alas = 2 x √17² - 15²
= 2 x √289 - 225
= 2 × 8
= 16 cm
luas alas = 16 cm × 16 cm
= 256 cm ²
=> luas 4 sisi tegak = 4 × 1/2 × alas × tinggi
= 4 × 1/2 × 16 × 17
= 4 × 136
= 544
=> luas permukaan = 256 + 544
= 800 cm ²
7. V = p × l × t
V = 9 cm × 13 cm × 13 cm
V = 1.521 cm2
Penjelasan dengan langkah-langkah:
done ya !
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Jawaban:
6. luas permukaan Limas = luas alas + luas 4 sisi tegak
=> luas alas = 2 x √17² - 15²
= 2 x √289 - 225
= 2 × 8
= 16 cm
luas alas = 16 cm × 16 cm
= 256 cm ²
=> luas 4 sisi tegak = 4 × 1/2 × alas × tinggi
= 4 × 1/2 × 16 × 17
= 4 × 136
= 544
=> luas permukaan = 256 + 544
= 800 cm ²
7. V = p × l × t
V = 9 cm × 13 cm × 13 cm
V = 1.521 cm2
Penjelasan dengan langkah-langkah:
done ya !