Monday, December 14, 2009

Brendan's Scribepost for December 14, 2009

Question
10. A triangle has side lengths of 120 mm, 160 mm, and 200 mm. Is the triangle a right triangle? Explain your reasoning.

Answer
120 x 120 = 14400
160 x 160 = 25600
200 x 200 =40000
The triangle is a right triangle because 14400 (120 squared) plus 25600 (160 squared) equals 40000 (200 squared). The Pythagorean Relationship works!

In case you forgot what was for homework, you had to do ...
4, 5, 6, 9, 10, 12, 13, 14, 15, 18, 19, 21 in the textbook and
pages 26 and 27 in your homework book.

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