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= √225 = 15
Volum = 1/3 πr²t
= 1/3x3,14x8²x15
= 1004,8 cm³
Luas = πr²+πrs
= (3,14x8²) + (3,14x8x17)
= 628 cm²
2. v = 1/3 πr2t = 1/3 x 3.14 x 64 x 15 = 1004.8 cm3
3. Lp = πr(r+s) = 3.14 x 8 (8+17) = 25.12 x 25 = 628 cm2