The side of a cube is 45 cm. find the surface
of all vertical face, alors sro
area
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Side of cube (l) = 45cm
To find: Surface area of all vertical faces and the total surface area of the cube
i. Area of vertical faces of cube = 4l2
= 4 (45)2
= 4 x 2025
= 8100 sq.cm.
ii. Total surface area of the cube = 6l2
= 6 (45)2
= 6 x 2025.
= 12150 sq.cm.
∴ The surface area of all vertical faces and the total surface area of the cube are 8100 sq.cm, and 12150 sq.cm,
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