Question

the height and the diameter of a cylinder open at the ends are 30 cm and 14 cm, respectively. find the area.

Answer 1

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GiveN:

• Diameter of base of cylinder =14 cm.
• Radius (r)=214=7 cm
• Height of cylinder is h=20 cm.

solutioN:

So,Surface Area Of Cylinder =2πr(r+h)

2×722×7(7+20)=2×722×7(7+20)

44×27=44×27

Surface area of cylinder =1188 sq.cm.

Volume of cylinder =πr2h

722×72×20=722×72×20

22×7×20 =22×7×20

Volume of cylinder=3080 cu.cm