Title: Lesson 27
Course: quiz duplicate error

Q: For a triangle, list the respective names of the points of concurrency of
• perpendicular bisectors of the sides
• bisectors of the angles
• medians
• lines containing the altitudes.
- incenter circumcenter centroid orthocenter
- circumcenter incenter centroid orthocenter
- circumcenter incenter orthocenter centroid
- incenter circumcenter orthocenter centroid
A: circumcenter incenter centroid orthocenter

Q: Where can the lines containing the altitudes of an obtuse triangle intersect?
I. inside the triangle
II. on the triangle
III. outside the triangle
- I only
- I or II only
- III only
- I, II, or II
A: III only

Q: Name a altitude for [Image]
[Image]
- AD
- CE
- AF
- BD
A: AF

Q: [Image] [Image] [Image]AB is the altitude of triangle ACD. Solve for x.
[Image: Altitude]
- 25
- 15
- 12.5
- 90
A: 25