The volume of the cube after drilling hole is 538.24 cu.m, the correct option is D.
A three dimensional figure that has all faces of a square, it has total 6 faces of equal length, height and width.
The Side of the cube is 9 cm.
The volume of the metal = Volume of the cube - Volume of cone
Volume of the cube = a³
Volume of cone = πr²h/3
Volume of metal = (9)³ - πr²h/3
The radius of the cone is half of the side length = 9/2 =4.5 cm
The height of the cone is 9 cm
Volume of metal = (9)³ - 3.14 * 4.5 ² * 9 /3
Volume of metal = 538.24 cu. cm
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