Question

(15) In a "PQR, if angle P=30°, angle Q=50°. Find angle R.
(16) Find the measure of an exterior angle if the two interior angles of an exterior angle of a
riangle are 40° and 55°
noint​

Answer 1

Answer:

15) Sum of all angles of a triangle = 180

angle P + angle Q + angle R = 180

30+50+angle R= 180

angle R = 180-80=100°

16) Exterior angle = sum of two opposite interior angles

= 40+55=95