Question

side of a cube is increaseed by 25% then the increased surface is





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Answer 1

Answer:

Given:

edge of cube be 10 units

Then, its surface area = $6a^{2}$ =6 x $10^{2}$ =600 sq.units

New edge= 10+25% of 10 =12.5 units

∴ New, surface area  =6 x $(12.5)^{2}$ =937.5 sq.units

% increase =$\frac{937.5 - 600}{600}$x 100 = 56.25%

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Step-by-step explanation: