Question

19. In ∆ ABC, ∠C = 3 ∠B = 2(∠A + ∠B)find the three angles of the triangle.

Answer 1

Answer:

we know that the sum of the three angles of a triangle is 180 degree so we can this sum by using the angle sum property of a triangle

Step-by-step explanation:

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Answer 2

Answer:

Angle B=40 ,C=120,A=20