Answer:
A and B is correct
Step-by-step explanation:
Answer:
48
Step-by-step explanation:
81 - 33 = 48
9514 1404 393
Answer:
(c) ∠ECF and ∠BCF
Step-by-step explanation:
Complementary angles total 90°. Here, 90° angle BCE is divided by ray CF into two complementary angles. They necessarily have a total of 90°.
∠ECF and ∠BCF