Question

plz answer the given question. tomorrow is my online maths test. I hope everyone will help me.
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Answer 1

Answer:

by solving,

a= 43°

b=63°

explanation:

137°+x=180°

x=180°-137°

x=43°

x+y+74°=180°

43°+y+74°=180°

y=180°-117°

y=63°

.......

.......hope this helps you

Answer 2

Answer:

a=63

b=43

Explanation:

137+a=180 (linear pair)

a=180-137=63

b=74+43+x=180(sum of interior angles)

b=117+x=180

180-117=63