# How much 1.25 meter wide cloth will be required to male it?

The radius of base of a conical tent is 7 meter and its height is 24 meter. How much 1.25 meter wide cloth will be required to male it?

(a) 320 m

(b) 520 m

(c) 400 m

(d) 440 m

**Answer: (d) 440 m **

**Solution:-**

The radius of a conical tent = 7 meter

The height of a conical tent = 24 meter

Then, the slant height of the cone = sqrt. (7^2 + 24^2)

= sqrt. (49 + 576)

= sqrt.625

= 25 meter

**Formula-
**

**The surface area of conical tent = pai x r x l**

**Where, l = slant height, r = radius of the cone & pai = constant.**

Then, the surface area of the conical tent = 22 x 7 x 25/7

= 550 m^2

length of the 1.25 meter wide cloth = 550/1.25

= 440 m

Hence, the correct answer is option (d) 440 m.