Question Number 30350 by mondodotto@gmail.com last updated on 21/Feb/18
Answered by Rasheed.Sindhi last updated on 21/Feb/18
$${w}:\mathrm{width}\:,\:{l}:\mathrm{length} \\ $$$$\mathrm{2}{w}={l}+\mathrm{3} \\ $$$$\mathrm{2}{l}+\mathrm{2}{w}=\mathrm{36} \\ $$$$\mathrm{2}{l}+\left({l}+\mathrm{3}\right)=\mathrm{36} \\ $$$$\mathrm{3}{l}=\mathrm{36}−\mathrm{3}=\mathrm{33} \\ $$$${l}=\mathrm{11}{cm} \\ $$$${w}=\frac{{l}+\mathrm{3}}{\mathrm{2}}=\frac{\mathrm{11}+\mathrm{3}}{\mathrm{2}}=\mathrm{7}\:{cm} \\ $$
Commented by mondodotto@gmail.com last updated on 21/Feb/18
$$\mathrm{thanx} \\ $$