Given: Height of cylinder = 11 cm Curved surface area =242cm2 Formula used: Volume of cylinder =π6r2h CSA of cylinder =2πrh Calculation: ∵ CSA of cylinder = 2πrh ⇒242=(2×22×r×11)/7 ⇒242×7=2×22×r×11 ⇒(242×7)/(2×22×11)=r ⇒r=7/2cm ∵ Volume of cylinder =πr2h ⇒ Volume of cylinder =(22/7)×(49/4)×11 =847/2cm3 =423.5cm3