Question

calculati perimetrul unui triunghi echilateral cu linia mijlocie de 9/radical3 cm

Answer 1

$lm= \frac{9}{ \sqrt{3} } = \frac{9* \sqrt{3} }{3} =3 \sqrt{3} cm \\ lm= \frac{latura}{2} \\ =\ \textgreater \ latura=6 \sqrt{3} \\ P= 3*latura=18 \sqrt{3} cm$