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

http://s1215.photobucket.com/albums/cc513/wattpadbookcoverstry/Math/?action=view&current=image0034e8483f4.gif

If Arc CE is 98°, what is the measure of ∡CDE?

56°

49°

131°

82°

Question

Lines CD and DE are tangent to circle A shown below.

http://s1215.photobucket.com/albums/cc513/wattpadbookcoverstry/Math/?action=view&current=image0034e8483f4.gif


If Arc CE is 98°, what is the measure of ∡CDE?

 56°

 49°

 131°

 82°

anonymous · Answer

http://i1215.photobucket.com/albums/cc513/wattpadbookcoverstry/Math/image0034e8483f4.gif

anonymous · Answer

82

cwrw238 · Answer

180 - 98 = 82

anonymous · Answer

180 - 98 = 82 (arcs are like triangles they have the same measure)

anonymous · Answer

How did you solve it?

anonymous · Answer

Arcs and triangles are similar triangles egual 180 (as do arcs) so all you have to do is subtract 98 from 180 which gives you 82.

amistre64 · Answer

360
-98
----
262

there is a thrm that says for this setup we do: (outer-inner)/2

262
-98
---
164/2 = 82

anonymous · Answer

Cant you just skip to 180 - 98 to make the problem more understandable?