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# The Radius (In Cm) of the Largest Right Circular Cone that Can Be Cut Out from a Cube of Edge 4.2 Cm is - Mathematics

Course
ConceptHeights and Distances

#### 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.

∴ 2r = 4.2 cm

rArr r=4.2/2 cm =2.1 cm