Question 17
Mensuration of SolidsCalculate the total surface area of a solid cone of slant height 15cm and base radius 8cm in terms of π.
- A.64πcm2
- B.120πcm2
- C.184πcm2
- D.200πcm2
- E.320πcm2
Show the answer and explanation
Answer: C (184πcm2)
Explanation
Total surface area = πr2 + πrl = π × 8 × (8 + 15) = 184π cm2.