Answer :

Answer:

35°

Step-by-step explanation:

Given that the triangle is a right triangle, this means that at least one of the angles has to be equal to 90°. The total sum of angles in a triangle add up to 180°.

So, it would be

55° + 90° + x = 180°

145° + x = 180°

x = 180° - 145°

x = 35°