Wednesday, December 2, 2009

ACE 4.1

Today we learned about ratios, a comparison between two numbers. We discussed problem 4.1 in the handout, which you can download here, and used ratios of corresponding sides of rectangles, parallelograms, and triangles to see if they were similar. We found out that for rectangles, with right angles, if the ratio of the length to width is the same, the rectangles are similar. For parallelograms, it is not enough for ratios to be the same: the corresponding angles must be the same too. For triangles, if they have the same corresponding angles, they must be similar. Classnotes can be downloaded here.

For homework, please choose one of the options below on the handout, which you can download here.

Option 1
Problems 1-4, 15-17, 21, 27

Option 2
Problems 1-2, 18-21, 26-28

Due tomorrow, Thursday, December 3.

No comments:

Post a Comment