Question

The radius (in cm) of the largest right circular cone that can be cut out from a cube of edge 4.2 cm is ______.

Options

• 2.1

• 4.2

• 8.4

• 1.05

Answer 1

The radius (in cm) of the largest right circular cone that can be cut out from a cube of edge 4.2 cm is 2.1.

Explanation:

Since, the diameter of the base of the largest cone that can be cut out from the cube = Edge of the cube = 4.2 cm

So, the radius of the base of the largest cone

= `4.2/2` = 2.1 cm