Science and Mathematics for Engineering 6th Edition by John Bird

Exercise 2

$$\text { Determ ine the area of a room } 12 \mathrm {~m} \text { long by } 9 \mathrm {~m} \text { wide in (a) } \mathrm { cm } ^ { 2 } \text { (b) } \mathrm { mm } ^ { 2 }$$