Question

The radius of the base of a conical tent is 12 m. The tent is 9 m high. Find the cost of the canvas required to make the tent, if one square metre of
canvas costs * 120 (Use pie =3.14
​

Answer 1

Answer:

To find the amount of canvas required to make a conical tent, we need to calculate the lateral surface area of the tent.

Lateral surface area of a cone of radius r, height h=πr

h

2

+r

2

As the total cost to make the tent is Rs 10048 at the rate of Rs 40 per sq m, total area LSA =

40

10048

=251.2 sq m

So, πr×

h

2

+r

2

=251.2

⇒3.14×8×

h

2

+8

2

=251.2

⇒

h

2

+8

2

=10

⇒h

2

+64=100

⇒h

2

=36

⇒h=6 m

Step-by-step explanation:

hope this help you army...