Question

please help me in these both question

Answer 1

5x +6×+7×=180. 18x=180. x=10. angles are 5 (10) + 6 (10) +7 (10)

Answer 2

Hey dear!

Here are your answers▶▶

21. Solution-

Let the first angle be x.

Then other angle will be (50°+ x)

Now, x + (50° + x) = 180°

➡ 2x + 50° = 180°
➡ 2x = 180°- 50°
➡ 2x = 130°
➡ x = 130°/2
➡ x = 65°

Therefore, the angles are 115° and 65°.

22. Solution-

Sum of the terms of the ratio =
5+6+7 = 18

First angle = 5/18 × 180 = 50°

Second angle = 6/18 × 180 = 60°

Third angle = 7/18 × 180 = 70°

Therefore,the angles are 50°, 60° and 70° .


Hope helped!!