The Total solution for NCERT class 6-12
We know that∠P + ∠Q + ∠R = 180° (Angle sum property)∠P + 25°+ 65° = 180°∠P + 90°= 180°∠P =180° – 90° – 90°∆PQR is a right triangle, right angled at P(i) Not True∴ PQ2 + QR2 ≠RP2 (By Pythagoras property)(ii) True∴ PQ2 + RP2 =QP2 (By Pythagoras property)(iii) Not True∴ RP2 + QR2 ≠PQ2 (By Pythagoras property)