In , if +=125°and+ =113°,Find ,and.
=67°, =41°, =89°
Given,
+= 125° ___________________ (i)
+ = 113° ___________________ (ii)
We know that sum of angles of triangle = 180°
∠A + ∠B + ∠C = 180° [Sum of angles]
∠A + 113°= 180° [From equation (ii)]
⇒ ∠A = 67°
Value of ∠A = 50° put in equation (i),
+ = 125°
⇒ 67° + = 108°
⇒ = 41°
Value of ∠B = 41° put in equation (ii),
+ = 130°
⇒ 41° + = 130°
⇒ = 89°