Question
Each side of a cube is 7.203m. Calculate the surface area and volume of the cube upto correct number of significant figure.

Answer

Significant figure in length $=4 \therefore$ Significant figure in surface area and volume $=4$ Surface area of cube $=$ $6(7.203)^2 \mathrm{~m}^2=311.299254=311.3 \mathrm{~m}^2$ Volume of cube $=(7.203)^3 \mathrm{~m}^3=373.714754 \mathrm{~m}^2=373.7 \mathrm{~m}^3$

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