Question 769697
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Take diagonal PR. It divides the rhombus into 2 triangles
PQR and PTR.
These 2 triangles are congruent - why? Because 2 sides PQ and TR are equal, so are
PT and QR (sides of a rhombus are equal) and the side PR is common.
So the corresponding angles of the 2 triangles are equal.
i.e. Angle PRT = angle PRQ
So PR bisects the angle R and also angle P.
You can similarly prove for the other diagonal QT also.
Hope you got it :)
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