Question

find the value of the unknown angle​

Answer 1

Step-by-step explanation:

180°-30°-90°= 60°=y

x=180-60=120°

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Answer 2

Answer:

y=60°,x=120°

Step-by-step explanation:

30°+90°+y=180°(sum of interior angles of triangle)

120°+y=180°

y=180°-120°

y=60°

y+x=180(linear pair )

60°+x=180°

x=180°-60°

x=120°

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