Question

pls slove sum no 6...

Answer 1

Sum of internal angles of a triangle = 180°

∠P + ∠Q + ∠R = 180°

100° + 50° + ∠R = 180°

150° + ∠R = 180°

∠R = 180° - 150°

∠R = 30°

∴ The value of ∠R = 30°

Answer 2

measure of all angles of triangle=180
$angle1 + angle2 + angle3 = 180$
6)100+50+angle R=180
150+angle R=180
angle R=180-150=30
7)we can also find using above formula=
angle P=40