Luas Permukaan Kerucut = 704 cm, r = 7cm, v =?

Luas kerucut = 704
πr (r + s) = 704
22/7 . 7 (7 + s) = 704
22(7 + s) = 704
7 + s = 704/22
7 + s = 32
s = 32 - 7
s = 25

t^2 = s^2 - r^2
t^2 = 25^2 - 7^2
t^2 = 625 - 49
t^2 = 576
t = √576
t = 24 cm

V kerucut
= 1/3πr^2t
= 1/3 . 22/7 . 7. 7. 24
= 22 . 7 . 8
= 154 . 8
= 1232 cm^3

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