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In the given figure, find the value of y.

In the given figure, find the value of y.-example-1
User Labyrinth
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1 Answer

6 votes

Answer:

y=20

Explanation:

since angles on a straight line =180°

and we are given half of the line(90°)

so we know we are left with another 90°

the angle opposite 30=30 because. opposite angles r equal

so then we now have the equation

180=(90+30)+3y

180=120+3y

180-120=3y

60=3y

dividing by 3

y=20

User Ggarber
by
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