Tuesday, December 08, 2009

Geometry: 3-5 (Tuesday)

How do you Prove that 2 Lines are Parallel?

1. Blackbeard's fleet of 7 assorted warships and refitted merchant ships arrives at Maracaibo, intent on a raid. However, the coast is protected by a line of Spanish war frigates, and behind them a fort wall with cannon poking out. Blackbeard approaches at a 45 degree angle to the line of ships. This also puts him at a 45 degree angle to the line of cannons. What is true about the two lines?

2. Read 3-5 and add a justification for what you said about the lines in part 1.

3. In the book, work problems 2-8 even, 16-20 even, 30, 34, 38, 40, 46-52 even, 64.

Extra Credit: Problems 10 (hint - start with postulate 3.4), 12, 22, 32, 36, and 42.

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