Question

2. Find the area of canvas required for a conical tent of slant height 7 m and base radius is 2 m.


(a) 44 m² (b) 24 m²

(c) 25 m² (d) 20 m²​

Answer 1

Answer:

Here,

h=24m and r=7m [ Given ]

We know,

Slant height, l=

r

2

+h

2

⇒ l=

(7)

2

+(24)

2

⇒ l=

(7)

2

+(24)

2

⇒ l=

49+56

⇒ l=

625

∴ l=25m

The amount of canvas required to make a cone would be equal to the curved surface area of cone.

⇒ Curved surface area of cone =πrl

=

7

22

×7×25

=550m

2