Use the image to answer the question.
An illustration shows a horizontal line with arrows at both ends. Another line with arrows at both ends extends from top right to bottom left and intersects the horizontal line in the center. The intersecting line creates 4 angles. The angle at the top left is labeled x degrees. The angle at top right is labeled y degrees. The angles at bottom left and right below the horizontal line are not labeled.
Use the relationship between supplementary angles to determine the value of y° if x°=125° .
(1 point)
Responses
305°
305 degrees
55°
55 degrees
125°
125 degrees
35°
To determine the value of y°, we need to remember that supplementary angles add up to 180°. Since the horizontal line and the intersecting line create a straight angle, the two angles adjacent to it (at the top left and top right) must add up to 180°.
Given that x° = 125°, we can subtract 125° from 180° to find the value of y°:
180° - 125° = 55°
Therefore, the value of y° is 55°.