✓ Lesson Check

Do you know HOW?

Are the triangles similar? If yes, write a similarity statement and explain how you know they are similar.

Do you UNDERSTAND?

4. Vocabulary How could you use indirect measurement to find the height of the flagpole at your school?

5. Error Analysis Which solution for the value of x in the figure below is not correct? Explain.

   

   1. 4 8 = 8 x 4 x = 72 x = 18 table with 3 rows and 2 columns , row1 column 1 , 4 eighths , column 2 equals , 8 over x , row2 column 1 , 4 x , column 2 equals 72 , row3 column 1 , x , column 2 equals 18 , end table
   2. 8 x = 4 6 48 = 4 x 12 = x table with 3 rows and 2 columns , row1 column 1 , 8 over x , column 2 equals , 4 sixths , row2 column 1 , 48 , column 2 equals 4 x , row3 column 1 , 12 , column 2 equals x , end table
6. 1. Compare and Contrast How are the SAS Similarity Theorem and the SAS Congruence Postulate alike? How are they different?
   2. How are the SSS Similarity Theorem and the SSS Congruence Postulate alike? How are they different?