



 
H Meagan, I drew your triangle. The line segment AC bisects the angle BAO. Triangles BAC and CAO are congruent and hence OC = CB and angle ACB is a right angle. Hence the xcoordinate of A is 3.Hence the right triangle CBA has one sid of length 3 and a hypotenuse of length 6. Use Pythagoras theorem to find the length of the third side, which is the ycoordinate of A. Harley  


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