#### 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

**A.**4.2**B.**2.1**C.**8.4**D.**1.05

#### Solution

The height and diameter of the base of the largest right circular cone that can be cut out from a cube are equal to the edge of the cube.

Let the radius of the cone be *r* cm.

∴ 2*r* = 4.2 cm

`rArr r=4.2/2 cm =2.1 cm`

The correct answer is B

Is there an error in this question or solution?

Solution The Radius (In Cm) of the Largest Right Circular Cone that Can Be Cut Out from a Cube of Edge 4.2 Cm is Concept: Heights and Distances.