Science and Mathematics for Engineering 6th Edition by John Bird

Exercise 26

A rectangular tabletop is $1500 \mathrm {~mm}$ long and $800 \mathrm {~mm}$ wide. Determine its area in
(a) $m m ^ { 2 }$ (b) $\mathrm { cm } ^ { 2 }$ (c) $m ^ { 2 }$