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t = 36 cm
a. V = 88704
La . t = 88704
La . 36 = 88704
La = 88704 : 36
La = 2464 cm²
b. La = 2464
πr² = 2464
22/7 . r² = 2464
r² = 2464 : 22/7
r² = 2464 × 7/22
r² = 784
r = √784
r = 28 cm
c. L selimut = 2πrt
L selimut = 2 . 22/7 . 28 . 36
L selimut = 6336 cm²