What is the radius of the base of a right circular cylinder whose height is 2.8 cm and the curved surface area is 121 cm² ?
Answers
Answered by
2
Answer:
okk
Step-by-step explanation:
the ratio of this will be 2.3and the volune will be 1612cu.cm
Answered by
3
Answer:
of the base of the cylinder be 2x and its height
volume of a cylinder=πr
2
h
⇒π(2r)
2
(3x)=1617
x
3
=(
2
7
)
3
⇒x=3.5cm
r = 7 cm h = 10.3 cm.
surface area =πrh=2×
7
22
×7×10.5=462cm
2
solution
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