The curved surface area of the cone is doubled, while the slant height remains the same.
(ii)
Find the radius and hence the vertical height of this cone, correct to the
nearest cm.
(iii)
Show that the volume of this cone is more than double the volume of
the cone in part (i).
Junior Certificate 2011 – sample paper
Page 4 of 23
Project Maths, phase 1
Paper 2 – Higher Level