Penjelasan dengan langkah-langkah:
r = 10 cm
s = 15 cm
Luas selimut kerucut
Ls = π . r . s
Ls = 3,14 . 10 . 15
Ls = 471 cm^2
Luas permukaan kerucut
Lp = π . r (r + s)
Lp = 3,14 . 10 (10 + 15)
Lp = 31,4 . 25
Lp = 785 cm^2
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Penjelasan dengan langkah-langkah:
r = 10 cm
s = 15 cm
Luas selimut kerucut
Ls = π . r . s
Ls = 3,14 . 10 . 15
Ls = 471 cm^2
Luas permukaan kerucut
Lp = π . r (r + s)
Lp = 3,14 . 10 (10 + 15)
Lp = 31,4 . 25
Lp = 785 cm^2