Geometryhard · Past Paper
The length of the angle bisector of angle A in triangle ABC is given by:
A(2bc cos A/2) / (b+c)
Bbc sin A
Csqrt(s(s-a))
D0.5 * a * h
✓ Correct Answer: A — (2bc cos A/2) / (b+c)
This formula provides the exact length of the internal angle bisector from vertex A.
Share this question
More from Geometry
- The line segment joining a vertex of a triangle to the midpoint of the opposite side is the:
- In a right-angled triangle, if the base is 3 cm and the height is 4 cm, find the hypotenuse.
- What is the exterior angle of a regular hexagon?
- Find the angle between the bisectors of two angles forming a linear pair.
- Find the measure of an angle whose supplement is 4 times its complement.