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Find y please help !!!

Find y please help !!!-example-1
User Norse
by
3.4k points

2 Answers

11 votes

Answer:

20°

Explanation:

take the sum of 3y + 10 and y and equal it to 90° that creates an equation making it easier for you to continue

Find y please help !!!-example-1
User JorenHeit
by
3.5k points
8 votes

Answer:

Y = 20°

let's assume the opposite angle of Y to be X

angle Y = angle X ( vertically opposite angles)

3y + 10 + X + 90° = 180° ( forming linear pair)

3y + X + 100 = 180°

X + 3y = 80° ----(1)

Y + 3y = 80°

4y = 80°

y = 20°

Find y please help !!!-example-1
User Trasvi
by
3.5k points