Thursday, May 23, 2013

Unit 1 day 6

Objective: "Similar triangles; angle-angle"
Example:
Similar triangles (AA) need to have the same angles to be similar triangles. They can be different sizes but as long as they have the same angles they will be similar triangles.
Quiz:
1. Find if the example above has similar angle-angle triangles.
2. Are these triangles similar (AA)?

3. Can you use a different way to find the angles of a triangle?
Answer key
1. The answer is yes. To find out if these are similar triangles all you need to do is use a protractor correctly to determine the angles of both triangles.
2. The answer is no. Clearly these angles are way off, but if you want to be sure you can double check with a protractor.
3. Yes you can, many times when test taking you wont have access to a protractor so what you can do is use the method using cos, sin, and tan and to remember how to use it just remember SO-CA-TOA!!!
Commented on Franks blog.
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