Find the area of canvas required to make a conical tent of radius 30 c

1.	Find the area of canvas required to make a conical tent of radius 30 cm and height 16m. Assume that extra area of Canvas required for stitching margins and wastage in cutting is approximately 5% of the curved surface area of the tent.
Answer» Answer: The height of the conical tent h=16 m And radius r=12 m The slant height l= h 2 +r 2 l= 16 2 +12 2 l=20 m The curved surface area of the cone =πrl =754.28 m 2 The cost of canvas REQUIRED at the rate =Rs.10×754.28 =Rs.7542.8 =Rs.7543 Hence, this is the answer.

Find the area of canvas required to make a conical tent of radius 30 cm and height 16m. Assume that extra area of Canvas required for stitching margins and wastage in cutting is approximately 5% of the curved surface area of the tent.

Answer»

Answer:

The height of the conical tent h=16 m

And radius r=12 m

The slant height l=

+12

l=20 m

The curved surface area of the cone

=πrl

=754.28 m

The cost of canvas REQUIRED at the rate

=Rs.10×754.28

=Rs.7542.8

=Rs.7543

Hence, this is the answer.