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Question -

Find the lateral surface area and total surface area of a cube of edge 10 cm.



Answer -

Edge of cube (a) = 10 cm
(i) тИ┤ Lateral surface area = 4a┬▓
= 4 x (10)┬▓ = 4 x 100 cm┬▓= 400 cm┬▓
(ii) Total surface area = 6a┬▓ = 6 x(10)┬▓ cm┬▓
= 6 x 100 = 600 cm┬▓

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