Sec 3/4 E Math Mock 2-Q09 - Mock Paper 2: Volume of a conical frustum

Sec 3/4 E Math Mock 2-Q09 - Mock Paper 2: Volume of a conical frustum

Secondary 3
10 marks
Original parallel to Sec3&4 E Math FA

A cone of base radius \(5\) cm and height \(18\) cm has a smaller similar cone of radius \(3\) cm removed from its top.

  1. Calculate the height of the smaller cone.[5]
  2. Hence, calculate the volume of the remaining frustum, giving your answer correct to 3 significant figures.[5]

Solution:

Solution locked

Sign in to view the step-by-step solution

Similar questions are unavailable for this question.
Answer:(a) \(10.8\) cm; (b) \(369.451\,\text{cm}^3\).

Need help? Join our JC Math tuition classes.

Learn more