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Raja's cap is in the form of a right circular cone of base radius 3 cm and slant height 25 cm. Find the area of the sheet required to make a cap. (Use
Question

Raja's cap is in the form of a right circular cone of base radius 3 cm and slant height 25 cm. Find the area of the sheet required to make a cap. (Use π=3.14\pi = 3.14 correct to closest integer value )

A.

450 sq. cm.

B.

236 sq. cm.

C.

350 sq. cm.

D.

50 sq. cm.

Correct option is B

Given:
The shape of the cap is a right circular cone.
Base radius of the cone (r) = 3 cm.
Slant height of the cone (l) = 25 cm.
π = 3.14.
Formula Used:
Curved surface area (CSA) = π r l
Where r is the radius of the base, and l is the slant height of the cone.
The area of the sheet required to make the cap is equal to the curved surface area.
Solution:
Substituting the given values into the formula:
CSA = 3.14 × 3 × 25
CSA = 3.14 × 75 = 235.5 cm²
The area of the sheet required to make the cap is 235.5cm² (rounded to the nearest integer).

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