Question

Angle
A is circumscribed about circle O. What is the length of AB

Answer 1

4

Explanation:

just did this one

Answer 2

4

Explanation:

In your imagination draw a line through A and O. Reflect triangle ACO about this line. Then AB is of the same length as AC: 4.

Similarly, the radii OC and OB have the same length, and so OB = 3.