2. 5-4 Medians and Altitudes
Using medians and altitudes of a triangle, students will label the centroid and orthocenter of that triangle.
5-4 Medians and Altitudes
Objective: To identify properties of medians and altitudes of a triangle

9. (1, 2)

11. 5-4 Quiz
The following questions are designed to help you decide if you understood today’s lesson.
Please come and talk to me if you miss one and you do not understand why.
Be sure to record the number you get right on your portfolio sheet.

12. 1. In ΔACE, G is the centroid and BE = 18. Find BG and GE.
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13. III. outside the triangle
2. Where can the lines containing the altitudes of an obtuse triangle intersect?
I only
I or II only
III only
I, II, or III
I. inside the triangle
II. on the triangle
III. outside the triangle
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14. 3. Name a median for ΔABC.
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15. 4. Where can the medians of a triangle intersect?
I. inside the triangle
II. on the triangle
III. outside the triangle
I only
III only
I or III only
I, II, or III
Non-Response Grid

16. 5. 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
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17. 5-4 p.312-314 #8-32 even omit #30 ASSIGNMENT:
At the end of your assignment be sure to rate your understanding and tell me why you rated yourself that way in 2 complete sentences.