1. A tent is in the shape of a right circular cylinder up to a height of 3 m
and conical above it. The total height of the tent is 13.5 m and the radius
of its base is 14 m. Find the cost of cloth required to make the tent at the
rate of 80 per square metre. Take a = 247.
[CBSE 2005]
Answers
Answered by
10
please mark as brainlist
A tent is the shape of a right circular cylinder up to a height of 3 m and conical above it. The total height of the tent is 13.5 m and the radius of its base is 14 m. Find the cost of cloth required to make the tent at the rate of Rs.80 per square metre. [Take π=
7
22
].
MEDIUM
Share
Study later
ANSWER
CSA of tent = CSA of cylinder + CSA of cone
=2πrh+πrl
=π(2×14×3+14
14
2
+10.5
2
)
=π(84+14×17.5)
=π(84+245)
=
7
22
×317
=1034 m
2
Cost of cloth required =1034×80
=Rs.82720
Similar questions