Answer:
its ment to be 83
Step-by-step explanation:
Answer:
A.1
Step-by-step explanation:
No other point is connect to those 4 lines
Uhh, answer choices?
In any case, since 
is inscribed in a semicircle, it is a right triangle (due to the inscribed angle theorem). Thus, by the Pythagorean theorem, 
Now, the circumradius of a right triangle (the radius of the circle passing through all three of its vertices) is simply half its hypotenuse, so 
