Question

Tolong dibantu ya plizzzzz

Answer 1

Verified answer

Diketahui :
- Jari - Jari = 8 cm
- Luas Selimut Kerucut = 136π cm²

Ditanya : Volume Kerucut = ....π cm³?

Penyelesaian :
- Garis Pelukis :
L = π × r × s
136π = π × 8 × s
136 = 8s
s = 136 ÷ 8
s = 17 cm

- Tinggi :
t = √s² - r²
t = √17² - 8²
t = √289 - 64
t = √225
t = 15 cm

- Volume Kerucut :
V = ⅓ × π × r × r × t
V = ⅓ × π × 8 × 8 × 15
V = 64π × 5
V = 320π cm³

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