Question

2. The cylinder shown is recast into a cube. Find the surface area of the cube?
diameter = 76cm
height = 36cm

Answer 1

Answer :-

Let side of cube is a cm .

so,

→ Volume of cylinder = Volume of cube.

→ πr²h = a³

→ 3.14 * (76/2)² * 36 = a³

→ 3.14 * 38*38 * 36 = a³

→ 163229.76 = a³

→ a ≈ 54.65 cm.

then,

→ Surface area of cube = 6a² = 6 * 54.65 * 54.65 ≈ 17919.74 cm² (Ans.)

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