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t = √169 - 100
t = √69
t = 8.3
Volume = 1/3 x π x r2 x t
= 1/3 x 3.14 x 100 x 8.3
= 868.73 cm3
V.kerucut = 1/3 x πr²t
= 1/3 x 3,14 x 10 x 10 x 8,3
= 868,733 cm³
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