Question Number 7827 by 314159 last updated on 17/Sep/16
Commented by Yozzia last updated on 18/Sep/16
$$\bigtriangleup{ABC}\:{is}\:{isosceles}\:{with}\:{b}={c}. \\ $$$${a}\leqslant{b}+{c}=\mathrm{2}{b}=\mathrm{2}{c}\:\:\left({Triangle}\:{inequality}\right) \\ $$$${I}'{ve}\:{gotten}\:{that}\:{far}\:{in}\:{the}\:{problem}. \\ $$