Q6 of 24 Page 227

77sq.m. tripal is required to make a right circular conical tent. If the slant height is 7m. Then let us write by calculating, the base area of the tent.

Structure of a tent is like a right circular cone.


∴ tripal required to make tent = curved surface area of the cone.


Let, base radius of the tent = r m


Slant height = 7 m


According to problem,


⇒ π × r × 7 = 77


⇒ 22/7 × r = 11


⇒ r = 7/2 = 3.5


∴ base radius of the tent = 3.5 m


∴ Base area of the tent,


= πr2


= 22/7 × 3.52


= 38.5 sq. m


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