Penjelasan dengan langkah-langkah:
1. Luas selimut kerucut
= πrs
=3,14×6×10
=188,4 cm²
2. Luas permukaan tabung
= 2πr (r + t)
= 2 × 22/7 × 3,5 (3,5 + 8)
= 22/7 × 7 (11,5)
= 22 (11,5)
= 253 cm²
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Penjelasan dengan langkah-langkah:
1. Luas selimut kerucut
= πrs
=3,14×6×10
=188,4 cm²
2. Luas permukaan tabung
= 2πr (r + t)
= 2 × 22/7 × 3,5 (3,5 + 8)
= 22/7 × 7 (11,5)
= 22 (11,5)
= 253 cm²