Question

In ∆PQR , angleP=70°, angle Q=65° then find angle R

Answer 1

and that's your answer

Answer 2

angle P + angle Q + angle R = 180°

70° + 65 ° + angle R = 180°

135 ° + angle R = 180°

angle R = 180° - 135 °

angle R = 45°