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Question

If ΔPQR is an isosceles triangle such that PQ=PR , then prove that the attitude PS from P on QR bisects QR
1304945_5d8ad3a1bbe64de2a64aa74bdbdfd6d6.PNG

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Solution

We have,

According to given figure.

PQ=PR(giventhat)

QS=SR(Bydefinationofmidpoint)

PS=PS(Commonline)

Then,

ΔSPQΔSPR (BY congruency S.S.S.)

Hence, PS bisects PQR by definition of angle bisector.

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