Question

Por favor mestres da matemática, me ajudem!!!

Answer 1

$\overline{BC}=\ell\\\\ \overline{BH}+\overline{CH}=\ell~~~~~~(\text{mas }\overline{BH}=\overline{CH})\\\\ \overline{BH}+\overline{BH}=\ell\\\\ 2\cdot \overline{BH}=\ell\\\\ \boxed{\begin{array}{c}\overline{BH}=\dfrac{\ell}{2} \end{array}}$


Bons estudos! :-)