Final answer:
If ∠a is a complement to ∠b and ∠c is complementary to ∠b, then ∠a is equal to ∠c.
The correct answer is:
a) ∠a = ∠c
Step-by-step explanation:
To determine the relationship between ∠a and ∠c, we need to understand what it means for two angles to be complementary. Complementary angles are two angles that add up to 90 degrees. So, if ∠a is a complement to ∠b and ∠c is complementary to ∠b, we can conclude that:
∠a + ∠b = 90 degrees
∠c + ∠b = 90 degrees
If we subtract ∠b from both sides of the equations, we get:
∠a = 90 - ∠b
∠c = 90 - ∠b
Therefore, ∠a is equal to ∠c.