Jawaban:
C. 486 cm²
Penjelasan dengan langkah-langkah:
luas tutup kubus = s x s
81 cm² = s²
√81 = s
9 cm = s
luas permukaan kubus
= 6 x s x s
= 6 x 9 cm x 9 xm
= 6 x 81 cm²
= 486 cm²
Jawaban : C
sisi kubus = √luas tutup
= √81 cm²
= ²√81 cm
= ²√9² cm
= 9 cm
Luas permukaan = 6 × s × s
= 6 × 9 × 9
= 6 × 81
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Jawaban:
C. 486 cm²
Penjelasan dengan langkah-langkah:
luas tutup kubus = s x s
81 cm² = s²
√81 = s
9 cm = s
luas permukaan kubus
= 6 x s x s
= 6 x 9 cm x 9 xm
= 6 x 81 cm²
= 486 cm²
Jawaban : C
Jawaban:
C. 486 cm²
Penjelasan dengan langkah-langkah:
sisi kubus = √luas tutup
= √81 cm²
= ²√81 cm
= ²√9² cm
= 9 cm
Luas permukaan = 6 × s × s
= 6 × 9 × 9
= 6 × 81
= 486 cm²