Q is a point on the side SR of a PSR such that PQ = PR. Prove that PS > PQ.
Given: Q is a point on side SR in PSR and PQ = PR
To Prove = PS > PQ
Proof: We know that the exterior angle of any triangle is greater than each of the opposite interior angles
PQR is exterior angle of
PSQ
PQR >
PSQ
PQ = PR (Given)
PQR =
PRQ (Angles opposite to equal sides are equal)
Then, PRQ =
PRS
PRS > PSR
Now, the side opposite to the greater angle is longer in a triangle
Then PS > PR
PS > PQ ( PQ = PR)
Hence Proved.