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

Question

anonymous · Answer

If arc CE is 105°, what is the measure of ∠CDE?

anonymous · Answer

@whpalmer4  please help me with this one

anonymous · Answer

will give u medel @whpalmer4

whpalmer4 · Answer

I think that the angle CDE is going to be the the other arc length (360-105) - 105, the whole thing divided by 2

if I'm remembering this stuff correctly, it's been a long time!

anonymous · Answer

52.5°

 62.5°

 75°

 255°


these are the answwer chioces btw

whpalmer4 · Answer

I think you'll find that what I suggested will give you one of those answers

whpalmer4 · Answer

and that the answer looks very close to what you get if you draw a circle, mark off 105 degrees with your protractor, draw two tangents at those points and measure the angle between them

anonymous · Answer

255?

anonymous · Answer

plse help

whpalmer4 · Answer

(360-105) - 105
--------------- =
          2

Looking at the picture, it should be obvious that 255 can't be the answer, right?

anonymous · Answer

75 :)

whpalmer4 · Answer

that's the one!