need help

[tacoman48]

I need help on this problem but i do not know where to start.

 

[Deleted member 4993]

I need help on this problem but i do not know where to start.

You need to use two theorems.

(1) Sum of the measures of the interior angles of a triangle is 180 degrees.

(2) Sum of measures of the supplemental angles is 180 degrees.

Please share your work\thoughts about this problem.

 

[blamocur]

I need help on this problem but i do not know where to start.

I would also suggest looking at this page : https://mathbitsnotebook.com/Geometry/Circles/CRAngles.html

 

[Otis]

Do the labeled angle measurements (in degrees) refer to central angles subtending respective arclengths (i.e., the arclength adjacent to each label)?

[imath]\;[/imath]