Question 23

Find the total surface area (in $$cm^{2}$$) of a cube of side 7.5 cm.

Solution

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Side of cube, $$a=7.5$$ cm

=> Total surface area = $$6a^2$$

= $$6\times(7.5)^2=337.5$$ $$cm^2$$

=> Ans - (C)

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