The height of a cylinder whose radius is 7cm and the total surface area is
1056
is
a) 15cm b) 7cm c) 17cm d)20cm
Answers
Answered by
2
Answer:
Let height =h
Total surface area=2πr(r+h)
r=7cm
⇒968=2×
7
22
×7(7+h)
⇒
44
968
=7+h
⇒h+7=22
⇒h=22−7
=15cm.
Answered by
1
Answer:
radius=7cm
total surface area = 2πr(r+h)
1056=2*22/7*7(7+h)
24= 7+h
h= 17 cm
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