Question

determine the angles of each of the following triangles ​

Answer 1

Answer:

one angle is.....

180-150=30° (linear pair)

now.....

2x+3x+30=180

5x+30=180

5x=180-30

x=150/5

x=30°

so.....

2x=2*30=60°

3x=3*30=90°

Answer 2

Answer:

2x +3x = 150 exterior angle property of triangle

5x = 150

x= 150/5

x= 30

then the two angles are:-

2x= 2*30= 60

3x= 3*30=90

Now

Let the required angle be x

60+ 90 +x =180 angle sum property of triangle

150+ x = 180

x= 180- 150

x= 30 Ans.