I need some help with this circle theorem, I understand that the line is over lapped but I can't figure the rest out.
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+532 use isoceles triangles, some of teh sides are the same because they are radii.
HOPE THIS HELPED!
+130081 The base angles of the bottom triangle are equal because they are opposite equal radii
So....the apex angle of the bottom triangle = 180 - 50 - 50 = 80°
And c is an inscribed angle intercepting the same arc as this central angle of 80°
So....c has 1/2 the measure of this angle = 40°
