Question

A tent is formed by a right circular
cylinder and a right circular cone. The
height of the tent is 10 m, whereas the
height of cylinder is 4 m. The diameter
of base of both the figures is same and
is 16 m. What is the cost of making such
a tent, if the rate of cloth is Rs. 21 per
m2?​

Answer 1

Answer:

Slant height of cone (1)

=

(10.5)

2

+14

2

=

110.25+196

=

306.25

=17.5 metre

Curved surface area of the cone =πrl

=

7

22

×4×17.5=770 sq.metre

Curved surface area cylinder =2πrh

=2×

7

22

×14×3=264 sq.metre

∴ Total area =264+770=1034 sq.metre

∴ Total cost =2×1034=Rs.2068.

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