Question Number 51768 by hassentimol last updated on 30/Dec/18
Commented by hassentimol last updated on 30/Dec/18
$$\mathrm{What}\:\mathrm{is}\:\mathrm{the}\:\mathrm{area}\:\mathrm{in}\:\mathrm{purple}\:\mathrm{given}\:\mathrm{that}\:\mathrm{1}\:\mathrm{small} \\ $$$$\mathrm{square}\:\mathrm{is}\:\mathrm{1}\:\mathrm{cm}^{\mathrm{2}} \:? \\ $$$$\mathrm{Thanks} \\ $$
Commented by behi83417@gmail.com last updated on 30/Dec/18
$${A}={i}+\frac{{b}}{\mathrm{2}}−\mathrm{1}=\mathrm{7}+\mathrm{2}−\mathrm{1}=\mathrm{8} \\ $$$${i}=\mathrm{7},{b}=\mathrm{4} \\ $$
Answered by ajfour last updated on 30/Dec/18
$$\mathrm{16}−\frac{\mathrm{1}}{\mathrm{2}}\left(\mathrm{2}×\mathrm{2}+\mathrm{1}×\mathrm{4}+\mathrm{3}×\mathrm{2}\right)=\:\mathrm{9}{cm}^{\mathrm{2}} \\ $$
Commented by hassentimol last updated on 30/Dec/18
$$\mathrm{Thanks}\:\mathrm{sir} \\ $$