The difference between two complementary angles is 40°. Find the angles.
Answer: A
Let the angles be x and y. Since they are complementary, x + y = 90°.
Their difference is x - y = 40°.
Adding the two equations: 2x = 130° => x = 65°.
Substituting x=65° into the first equation: 65° + y = 90° => y = 25°.
The angles are 65° and 25°.