Similarity: Missing Side

Similarity

I can find the scale factors and use them to solve for missing sides.

Multiple Choice

What is ratio of any two corresponding sides?

• Scale Factor

• Corresponding Sides

• Similar Figures

Multiple Choice

If two figures are similar, the corresponding sides are ______________.

• equal

• congruent

• proportional

• none of these

Multiple Choice

All angles in similar figures are congruent.

• True

• False

Corresponding Sides and Angles

• Matching sides of two or more polygons are called corresponding sides, and matching angles are called corresponding angles. 

•  If two figures are similar, then the measures of the corresponding angles are equal and the ratios of the lengths of the corresponding sides are proportional.

Similar Figures

• Two figures that have the same shape are said to be similar. 

• When two figures are similar, the ratios of the lengths of their corresponding sides are equal. 

• To determine if the triangles below are similar, compare their corresponding sides.

Watch the video (copy the link and open it in a new window)

https://www.youtube.com/watch?v=MqI45r7PjuY

Are the two figures shown similar?

Similar Triangles (missing side)

Practice time:

https://quizlet.com/_8wfynz?x=1qqt&i=2zyv98

You should review flash cards. Suggestion: Complete all problems on the paper.

Similarity Quiz

Go to Google Classroom, open Week 9 Assignments and you will find Quizizz link there. Complete the game to get a credit. Retake it as many times as you need to get at least 70%.