Question

the surface area of a cylinder which exactly fits in a cube of side b is...... ​

Answer 1

The surface area of a cylinder which exactly fits in a cube of side b is πx².

• Consider the side of cube as x, then the height of cylinder will be equal to the height of the cylinder.

• Also the radius of the cylinder will be half of the side length of the cube.

• So we get:

                 height = x, and radius = x/2

• CSA of a cylinder = 2πrh

                                                = 2π (x/2)(x)

                                                = πx²