To determine the value of y, we need to set up an equation using the angle relationships.
First, we know that angles that are vertically opposite are equal. So, the 120° angle and the (2y+30)° angle are vertically opposite.
Therefore, we can set up the equation:
2y + 30 = 120.
Now, we can solve for y:
2y = 120 - 30.
2y = 90.
y = 90/2.
y = 45.
Therefore, the value of y is 45.
C. Y equals 45.
The diagram shows line M intersecting, line N, and shows some of the angle measures
Angles:
120°
(2x+10)°
(2Y+30)°
Using the angle relationships, determine the value of y in the diagram above
A. Y equals 15.
B. Y equals 30.
C. Y equals 45
D. Y equals 90.
1 answer
1 answer