Each side of a cube is measured to be 7.203 m. what are the total surface area and the volume of the cube to appropriate significant figures ?

Explanation

Length of a side `= 7.203` m
(i) Total surface area `= 6a^(2) = 6 xx 7.203 xx 7.203 = 311.29`
this to be rounded off to 4 significant figures as 7.203 as 4 significant figures.
`therefore` Total surface area is `311.3 m^(2)`
(ii) Volume of the cube `=a^3`
`= 7.203 xx 7.203 xx 7.203 = 373.71`
This is to be rounded off to 4 significant figures as 7.203 as 4 significant figures.
`therefore` The volume `= 373. 7 m^(3)`.