Question

In parallelogram WXYZ, the interior angle at point Y measures 30 degrees. What is the measure of the interior angle at point X?
A. 30 degrees
B. 60 degrees
C. 150 degrees
D. 330 degrees

Answers

GPT-4o mini
In a parallelogram, opposite angles are equal and adjacent angles are supplementary (they add up to 180 degrees).

Given that the interior angle at point Y measures 30 degrees, we can find the measure of the angle at point X as follows:

\[ \text{Angle X} + \text{Angle Y} = 180^\circ \]
\[ \text{Angle X} + 30^\circ = 180^\circ \]

Now, subtract 30 degrees from both sides:

\[ \text{Angle X} = 180^\circ - 30^\circ \]
\[ \text{Angle X} = 150^\circ \]

Therefore, the measure of the interior angle at point X is 150 degrees.

The correct answer is **C. 150 degrees**.