i have no idea what the answer, please help me

Answer:
43°
Step-by-step explanation:
-the interior angle of a triangle always adds up to 180°
- angles that form a straight line always adds up to 180°
- the angle at 75° has the angle of 105° to add up to 180°
- the triangle needs a full degree of 180, but only affs up to 137° (105° + 32°) so you have to subtract the 137° from the total amount you need(180°) which gives you the answer of 43°
Answer:
Step-by-step explanation:
it cant be 73° then it would look about the same size as 75°
and it cant be 15° cause it would look smaller than 32°.
so in my Opinion it looks like it would be 43°.
sorry if its wrong