Find the volume, the lateral surface area and the total surface area of the following cylinders whose
(1) Radius of the base = 21 cm and height = 45 cm
(ii) Radius of the base = 4.9 cm and height = 12 cm.
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Answered by
20
Answer:
1) CSA of cylinder = 2πrh
= 2× 22/7 × 21 × 45
= 5940 cm^2
TSA = 2πr(r+h)
= 2×22/7×21(21+45)
= 8712 cm^2
Vol = πr^2h
= 22/7×(21)^2×45
= 62370 cm^3
2) CSA = 2×22/7×4.9×12
= 369.6 cm^2
TSA = 2×22/7×4.9(4.9+12)
= 520.52 cm^2
Vol = 22/7×(4.9)^2×12
= 905.52 cm^3
Hope it will help u !!
Answered by
6
Step-by-step explanation:
hope it helps u and sorry for bad hand writting I was in a hurry so :D
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