1. Math
2. Geometry
3. in an abc triangle the median bm is plotted the...

# Question: in an abc triangle the median bm is plotted the...

###### Question details

In an ABC triangle, the median BM is plotted; the point H on BM is located; in such a way
that ∠HAB = 3∠HBC, ∠BHA = 90◦
and AB = 2 · HM. Calculate the ∠HBC.