Lines CD and DE are tangent to circle A as shown below:

Lines CD and DE are tangent to circle A and intersect at point D. Arc CE measures 130 degrees. Point B lies on circle A.

If arc CE is 130°, what is the measure of ∠ CDE?

Question

Lines CD and DE are tangent to circle A as shown below:

Lines CD and DE are tangent to circle A and intersect at point D. Arc CE measures 130 degrees. Point B lies on circle A.

If arc CE is 130°, what is the measure of ∠ CDE?

HeartTricker · Answer

Hi what would the answer choices be?

jhonyy9 · Answer

try make a draw about this - will be more easy understandably

AZ · Answer

Here is the drawing
|dw:1621658825117:dw|

AZ · Answer

This is the formula

you should know that 'a' and 'b' add up to 360 degrees
|dw:1621658972339:dw|

AZ · Answer

So if the arc is 130

then the remaining rest of the arc is 360 - 130

and so then you can you use the formula to calculate for the angle CDE which is X?

AZ · Answer

you subtract the two arcs and divide by 2