Krishna
0

Step 1: Recall the angle bisector theorem

NOTE : An angle bisector of an angle of a triangle divides the opposite side

in two segments that are proportional to the other two sides of the triangle.

Step 2: Set up a angle theorem  proportion in the given figure:

Step 3: Substitute all the known in the proportion

EXAMPLE : \frac{5}{12} = \frac{3.5}{x}

Step 4: Solve for x

Cross multiply.

5x = 3.5 * 12

Divide both sides by 5

x = \frac{42}{5}

x = 8.4 .

The value of x is 8.4