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smg membantu ya kawan.
tandai aq sbg jawaban terbaik!
Mksh..
r = 63 cm
t = 100 cm
ditanya a. V b. L
jawab
a. V = πr²t = 22/7 . 63² . 100
= 22/7 . 7.9.63.63 . 100
= 22.9.63.63.100
= 78586200 cm³
b. L = 2πr (r+t)
= 2.22/7.63 (63+100)
= 2.22/7.7.9 (163)
= 2.22.9.163
= 64548 cm²