the volume of a cylinder is 490 pie cm sq.
and its height is 10 cm . Find the area of its whole surface.
Answers
Answered by
5
Step-by-step explanation:
volume of a cylinder =πr^2h = 490πcm^2
r^2= 49 sq cm
r=7cm
total surface area = lateral surface area+ 2*area of the base
lateral surface area of cylinder = 2πrh
= 2*22/7*7*10 =440sq cm
area of the base = πr^2
= 22/7*49
= 154sqcm
total surface area = 440sqcm+308sq cm(2*154)
total surface area = 748 sq. cm
Answered by
1
Answer:
according to me this is the answer 49cm^2
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