MATH 141 Construction Assignment

Each construction should be on a separate page.

1. Using the straightedge draw a triangle with sides of approximately 4, 5, and 6 inches. Label it ABC. Construct the medians from each vertex of the triangle. Do the medians appear to meet in one point?

2. Using the straightedge draw a triangle with sides of approximately 4, 5, and 6 inches. Label it ABC. Construct the angle bisectors for each vertex of the triangle. Do the bisectors appear to meet at one point?

3. Using the straightedge draw a triangle with sides of approximately 4, 5, and 6 inches. Label it ABC. Construct the perpendicular bisectors of each of the sides of the triangle. Do the perpendicular bisectors appear to meet at one point?

4. Draw an obtuse triangle with the straight edge. Use sides of approximately 4, 4, and 6 inches. Construct the altitudes from each vertex to the opposite side (perhaps extended). Do the altitudes appear to meet at one point?