Question Number 36328 by Rio Mike last updated on 31/May/18
$$\mathrm{find}\:\mathrm{the}\:\mathrm{perimeter}\:\mathrm{of}\:\mathrm{a}\:\mathrm{right}\:\mathrm{angle}\: \\ $$$$\mathrm{triangle}\:\mathrm{4}{xcm}\:{high}\:{and}\:\mathrm{5}{xcm}\:{base} \\ $$
Commented by Rasheed.Sindhi last updated on 02/Jun/18
$$\mathrm{Hypotenuse}=\sqrt{\left(\mathrm{5x}\right)^{\mathrm{2}} +\left(\mathrm{4x}\right)^{\mathrm{2}} }=\sqrt{\mathrm{25x}^{\mathrm{2}} +\mathrm{16x}^{\mathrm{2}} }=\sqrt{\mathrm{41}}\:\mathrm{x} \\ $$$$\mathrm{Perimeter}=\mathrm{5x}+\mathrm{4x}+\sqrt{\mathrm{41}}\:\mathrm{x}=\:\mathrm{15}.\mathrm{40x} \\ $$