Question

In triangle ABC, angle b=angle a+angle c /2 and angle a: c=1: 2. Find the measure of each angle of triangle.

Answer 1

Answer:

<a + <b + <c = 180

a/c=1/2

2a = c

b = a + c/2

b = a + 2a/2

b = a + a

b = 2a = c

a + 2a + 2a =180

5a = 180

a = 180/5

a = 36

b = c= 2 x 36

b = c = 72

Hence a = 36

            b = 72

            c = 72

Answer 2

Step-by-step explanation:

In my practice book the answer is something like this: A 40 , B 60 , C 80 But I don't know how?