Question

Select the candidate satisfying the named center's defining equations for the given triangle.

$$A=(18,-6),\quad B=(66,-6),\quad C=(18,30)\ 	ext{Verify circumcenter }O\ OA^2=OB^2=OC^2,\quad d(I,AB)=d(I,BC)=d(I,CA)$$

Accepted Answer

$$O=(42,12)$$

Answer

$$O=(34,6)$$

Answer

$$O=(30,6)$$

Answer

$$O=(18,-6)$$

Practice: Triangle Centers - Verify Candidate (Equation Shown)