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s = √576 + 100
s = √676
s = 26 cm
Lp = πr² + πrs
Lp = 3,14 x 10² + 3,14 x 10 x 26
Lp = 314 + 816.4
Lp = 1130.4 cm²
luas selimut
Ls = π x r x s
= 3,14 x 10 x 26
= 816,4 cm²
La = π x r²
= 3,14 x 10 x 10
= 314 cm²
luas permukaan
Lp = La + Ls
= 314 + 816,4
= 1130,4 cm²