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r = 8 cm
s = 17
Ditanya:
t = ----------?
Ls = ---------?
V= ----------?
Jawab:
t = √(s² - r²)
= √(17² - 8²)
= √(289 - 64)
= √225
= 15 cm
Ls = πrs
=π.8.17
= 136 π cm²
V = 1/3 πr²t
= 1/3 π . 8².15
= 320π