Question 242793
How does the measure of an inscribed angle of a circle compare with that of a central angle?
<pre>
If they both subtend the same arc, the inscribed angle's measure
is on-half that of the central angle:

{{{drawing(400,400,-2,2,-2,2,

circle(0,0,1), line(.9205,.39073,0,0),

line(.682,-.73135,0,0), line(.9205,.39073,-.9205,.39073),

line(.682,-.73135,-.9205,.39073) )}}}

Edwin</pre>