Question

In ΔPQR, ∠P=70°, ∠Q=65° then find ∠R.

Answer 1

given-
angle P - 70
angle Q - 65
angle R - ?

We know that,
The sum of all angles of a triangle is 180

angle P + angle Q + angle R = 180

70 + 65 + angle R = 180

135 + angle R = 180

angle R = 180 - 135

angle R = 45