Question

Lines CD and DE are tangent to circle A shown below.



If arc CE is 126°, what is the measure of ∡CDE?

Answer 1

They are supplementary angles

Answer 2

If arc CE is 126, the major arc is 360 - 126 and the desired angle is 1/2 the difference of the arcs.

Answer 3

\[\angle CAE+\angle CDE=180\]

Answer 4

So the answer would be 117?

Answer 5

No. 54