Answer:
The first choice: 26 degrees, 51 degrees, 103 degrees
Explanation:
Although this question was asked a while ago, it's better for it to be answered.
The "interior angles" of a triangle are the angles that are inside of the triangle! The total sum of the interior angles of a triangle WILL and ALWAYS be 180 degrees.
The only thing you have to do for this problem is add up the degrees and see which one equals 180 degrees!
26 + 51 + 103 = 180 degrees
Hence, the answer is the first choice. Hopefully this helped! If any further questions, feel free to ask me. Have a great day!!! :)