Question

A tent is cylindrical to a height of 11 m and its upper part is
conical. The total height of the tent is 16 m and diameter
of its base is 24 m. If 10% of the cloth is used for folds and
stitching, find the cost of the cloth required to make this
tent at the rate of Rs. 12 per m2. (Ans: Rs. 17424)​

Answer 1

Step-by-step explanation:

Cylinder:

Diameter =42 m ⇒ Radius (r)=21 m

Height (h)=21 m

C.S.A. Cylinder =2πrh square cm

=2× 7 = 22

×21×21 =2772m 2

Cone:

Radius (r)=21 m, Height (h)=28 ml= 4 + 2 +r

2 = 28 - 2 +21

2= 1225

=35 m

C.S.A. of cone =πrl square cm

= 722

×21×35=2310m²

Total surface area of circus tent

=2772+2310=5082m²

The cost of 1 square metre = Rs. 12.50

Total cost of canvas =5082×12.50= Rs. 63,525..

Hope its help...