
Get live Maths 1-on-1 Classs - Class 6 to 12
Last updated at March 23, 2023 by Teachoo
Ex 6.2, 1 (i) Find the value of the unknown exterior angle x in the following diagrams:In ∆ABC, ∠ACD = x ∠A = 50° ∠B = 70° We know that, Exterior angle is sum of interior opposite angles ∠ACD = ∠A + ∠B x = 50° + 70° x = 120°