Question 47
Mensuration of SolidsFind the curved surface area of a cone of radius 3cm and slant height 7 cm. (Take π = 22/7)
- A.22cm2
- B.44cm2
- C.66cm2
- D.132cm2
- E.198cm2
Show the answer and explanation
Answer: C (66cm2)
Explanation
Curved surface = πrl = 22/7 × 3 × 7 = 66 cm2.