Review Exercises
In Review Exercises 22 to 24,
Given: 






Prove: 

To Find:
The length of the line joining the mid points of the sides of the triangle and measure of angles based on the information provided.
Formula Used:
Sum of the interior angle of a triangle is
Theorem on triangle:
The line segment that joins the midpoints of two sides of a triangle is parallel to the third side and has a length equal to onehalf the length of the third side.
That is,
Calculation:
It is given that
Also given that
Applying the theorem,
So
Here
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