Trigonometry! #28
Geometry
Level
3
For a \(\Delta ABC\),
\(c=3cm\)
\(b=6cm\)
\(\cos(\angle BAC)=\frac {1}{8}\)
Find the length of \(AD\), the angle bisector of \(\angle BAC\), such that \(D\) lies on \(\overline{BC}\).
This problem is part of the set Trigonometry.
by
Omkar Kulkarni