Question

in the ∆abc, angle a is 20° and c is 50° then the triangle is___​

Answer 1

Step-by-step explanation:

1. An exterior angle of a triangle is formed, when a side of a triangle is ... In ∆ABC, ∠Α = 50°, ∠ B = 70° and bisector of ∠C meets AB in D. (Fig . 6.17). ... (iii) ∠ PRS = ∠ _____ + ∠ _____.

Answer 2

Answer:

by using angle sum property

Angle A+ Angle B+ Angle C= 180°

20°+Angle B+50°= 180°

Angle B+70°=180°

Angle B= 180°- 70°

Angle B =110°

so the triangle is scalene triangle.