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= 7.203m
(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 7203 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)`