Geometry: 4-1 & 4-2 (Thursday)

Quiz Today!

Then on to Triangles:

1. Read 4-1

2. Betelgeuse, Bellatrix, and Rigel could be plotted at (-2, 5), (1,5), and (3,-3), respectively. These stars form a Bermuda triangle of the heavens (known as the Funkangulum), which Spock is the only organism to have entered and appeared outside again. What are TWO terms that apply to this triangle?

3. In 4-1, work problems 4, 7, 30, 44, 49.


4. Read 4-2

5. This time Spock is going to skirt around the Funkangulum. He travels from Betelgeuse to Bellatrix, and then turns toward Rigel. If the angle at Betelgeuse measures 40 degrees, and the angle at Rigel measures 20 degrees, how much did Spock turn at Bellatrix to head toward Rigel?

6. In 4-2, work problems 2-10 even, 36, 38, 48.

Extra Credit: 4-2 #12, 18-22 even, 45.