Given: 

Find: 

To find:
Given:
Theorem used:
If a line is parallel to one side of a triangle and intersects other two sides, then it divides these sides proportionally.
Formula used:
If
Calculation:
Given:
Since if a line is parallel to one side of a triangle and intersects other two sides, then it divides these sides proportionally.
We know that, if
From the figure, we see that
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