Question 32
Mensuration of SolidsFind the value of l in the frustrum above.
- A.5 cm
- B.6 cm
- C.7 cm
- D.8 cm
Show the answer and explanation
Answer: A (5 cm)
Explanation
The radii differ by 6 − 3 = 3 cm and the height is 4 cm, so the slant height l = √(4² + 3²) = 5 cm.