Answer:
The angles given are Complementary angles
Explanation:
By mathematics rules, any two angles whose sum is equal to 90 are called complementary angles. In a right angled triangle, the two non-right angles are complementary, because in a triangle the three angles add to 180°, and 90° has already been taken by the right angle. When two angles add to 90°, we say they "Complement" each other. The same rule goes for the given picture where both the angles are 45 degrees and adding them gives us 90 degrees.