Question

Algebra Find the value of x and y. Then find the measure of each labeled angle.

Answer 1

x=103°

x = 24°

x=30°

x=75° and y=110°

Explanation:

9. x + x -26 =180

2x = 180+26

x=103°

10. x/2 +7x =180

15x = 360°

x = 24°

11. 3x-5 = x+55

2x = 60°

x=30°

12. x+20+x+10=180

2x +30 =180

x=75°

y+y-40=180

2y = 220

y=110°

note : related with the sum of the angles at a straight line. and corresponding angles, adjacent angles in a traversal.