find a when b = 8cm and h = 11 cm
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Step-by-step explanation:
Area of paper=CSA of cylinder
⇒l×b=2πrh
⇒11×8=2×722×r×8
⇒r=44×811×8×7=47cm
∴Volume of cylinder=πr2h=722×47×47×8
=77cm3
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