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
- Calculate the area of a triangle whose sides are 13 cm, 14 cm, and 15 cm using Heron's formula.
- A line segment joining any two points on the circumference of a circle is called:
- A median of a triangle divides it into two triangles of:
- Two circles touch each other externally. The distance between their centers is 14 cm and the sum of their areas is 130*pi sq cm. Find the radii.
- In the given figure, O is the center. If angle OAB = 30 degrees, find angle ACB.