Question 169
The diagonals of the parallelogram $ABCD$ meet at $O$. The bisectors of the angles $DAC$ and $DBC$ meet at $T$. It is known that $\overrightarrow{TD}+\overrightarrow{TC}=\overrightarrow{TO}$. Find the measures of the angles of triangle $ABT$.
Claudiu Militaru
Claudiu Militaru