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Example 14

Example 14. In an equilateral triangle PQR, the side QR is trisected at S. prove that 

Solution:-

Given:- In an equilateral is trisected at S.

To Prove:- 

Construction:- is drawn

Proof:- QD = DR = QR/2 ------------(i)

Side QR is trisected at S(given)

In  is acute

 

 


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