Use the image to answer the question.
An illustration shows triangle uppercase H uppercase I uppercase J. Uppercase H is the left vertex, uppercase I is the top vertex, and uppercase J is the right vertex. A line extending outward from uppercase H forms an exterior angle of 38 degrees.
What is the sum of the measures of the interior angles at vertex I and vertex J ?
(1 point)
Responses
52°
52 degrees
128°
128 degrees
142°
142 degrees
38°
Since the line extending from vertex H forms an exterior angle of 38 degrees, the corresponding interior angle at vertex I will have a measure of 180 degrees - 38 degrees = 142 degrees.
Therefore, the sum of the measures of the interior angles at vertex I and vertex J is 142 degrees.
So, the correct answer is 142°.