Geometry Advanced Quiz 4

1. What is the point of intersection of the altitudes of a triangle called?

2. What is the point of intersection of the angle bisectors of a triangle called?

3. What is the point of intersection of the perpendicular bisectors of a triangle called?

4. What is a transformation that preserves angle measures and the ratios of side lengths called?

5. What is a transformation that preserves both angle measures and side lengths called?

6. What is the set of all points in a plane such that the sum of the distances from two fixed points is constant called?

7. What is the set of all points in a plane such that the difference of the distances from two fixed points is constant called?

8. What is the fixed line used in the definition of a parabola called?

9. What is the fixed point used in the definition of a parabola called?

10. What is the point on a parabola that is closest to the directrix called?