Question

find the value of x and y in the following angles.

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Answer 1

Answer:

Step-by-step explanation:

as we know that sum of linear pair is 180°

and sum of all angles of triangle is 180°

i) here x+55°+45°= 180°

x=180°-100°=80°

x+y=180°

y=180°-80° =100°

ii) here

y+130°=180°

y=180°-130°=50°

60°+x+y=180°

x=180°-60°-y=180°-60°-50°

x=180°-110°=70°

iii) here y=50° vertically opposite angle

x+y+60°=180°

x=180°-60°-y=180°-60°-50°

x=180°-110°=70°

iv) x+45°+45°=180°

 x=180°-90°=90°

y=180°-x

y=180°-90°=90°