s = √21² + 18²
s = √441 + 324
s = √765 = 27,658 (dibulatkan jadi 28)
atau √9 x 85 = 3 √85
Luas Selimut kerucut = π x r x s
= 22/7 x 21 x 28
= 22 x 3 x 38
= 1848
atau 22 x 3 x 3 √85
= 198 √85
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Minggu, 19 Mei 2024 -
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s = √21² + 18²
s = √441 + 324
s = √765 = 27,658 (dibulatkan jadi 28)
atau √9 x 85 = 3 √85
Luas Selimut kerucut = π x r x s
= 22/7 x 21 x 28
= 22 x 3 x 38
= 1848
atau 22 x 3 x 3 √85
= 198 √85
Editor: Muhammad Rizky Suryana
Sumber: BSE Kemendikbud
