Question

8. A circus tent is in the form of a cylinder sur
mounted by a cone. The redius of the base of
the cylinder is 30 feet and its height is 10 feet.
If the total height of the tent is 20 feet, then the
volume of the air (in cubic feet) in the tent is
1. 120 2. 1200 3.12000* 4. 140
Previous Papers​

Answer 1

Answer:

please mark a brilliant

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 m

l=

4

2

+r

2

=

28

2

+21

2

=

1225

=35 m

C.S.A. of cone =πrl square cm

=

7

22

×21×35=2310m

2

Total surface area of circus tent

=2772+2310=5082m

2

The cost of 1 square metre = Rs. 12.50

Total cost of canvas =5082×12.50= Rs. 63525

Answer 2

Answer:

the total cost of canvas is 63525.I hope it helps u