Lp = 678,24 cm²
(e) Luas permukaan kerucut
s = √8² + 15²
s = √64 + 225
s = √289 = 17 dm
Lp = πr(r + s)
Lp = 3,14 × 8 dm × (8 dm + 17 dm)
Lp = 25,12 dm × (25 dm)
Lp = 628 dm²
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Minggu, 19 Mei 2024 -
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Lp = 678,24 cm²
(e) Luas permukaan kerucut
s = √8² + 15²
s = √64 + 225
s = √289 = 17 dm
Lp = πr(r + s)
Lp = 3,14 × 8 dm × (8 dm + 17 dm)
Lp = 25,12 dm × (25 dm)
Lp = 628 dm²
Editor: Moch. Kharisson Abdillah
Sumber: Buku Kemdikbud
