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Module 3 Lesson 11 More on Similar Triangles
1
Students practice finding lengths of corresponding sides of similar triangles, and present informal arguments as to whether or not two triangles are similar.
Warm Up... and *Have Homework Out*A
B C
A'
B'C'40O
40O105O
35O
Are the two triangles similar? How do you know.
Friday, December 11, 2015
Module 3 Lesson 11 More on Similar Triangles
11
Since we only have one angle.. We really cant use AA theorem. Thus, we need to compare the ratio of corresponding side lengths.
Module 3 Lesson 11 More on Similar Triangles
12
Comparing the ratio of corresponding side lengths. Determine if the following two triangles are similar.
Module 3 Lesson 11 More on Similar Triangles
14
A. Based on the information given, is triangle ABC ~ triangle AB'C'? Explain.
Module 3 Lesson 11 More on Similar Triangles
15
B. Assume the line containing BC is parallel to the line containing B'C'. With this information can we say that triangle ABC ~ triangle AB'C'? Explain
Module 3 Lesson 11 More on Similar Triangles
16
Given that triangle ABC ~ AB'C', determine the length of AC'.
Module 3 Lesson 11 More on Similar Triangles
17
Given that triangle ABC ~ AB'C', determine the length of AB.