Explain similarity transformations

Start lessonBegins with Define similarity · Slides

Teacher tools for this standard

Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework

Lesson Plan →Objectives, pacing and practice, built from this lesson's brief.
Guided Notes →One page your students fill in and keep.
Exit Ticket →Three items at the end of class. No student accounts.
Re-teach →After an exit ticket: who missed what, and what to do tomorrow.
Homework →Assign practice; it grades itself.

HSG.SRT.A.2

**HSG.SRT.A.2**: Given two figures, use the definition of similarity in terms of similarity transformations to decide if they are similar; explain using similarity transformations the meaning of similarity for triangles as the equality of all corresponding pairs of angles and the proportionality of all corresponding pairs of sides.

HSG.SRT.A.2: Given two figures, use the definition of similarity in terms of similarity transformations to decide if they are similar; explain using similarity transformations the meaning of similarity for triangles as the equality of all corresponding pairs of angles and the proportionality of all corresponding pairs of sides.

What you'll learn

Define similarity transformations as sequences of rigid motions followed by dilations
Use the definition of similarity to determine if two figures are similar
Explain why similar triangles have equal corresponding angles and proportional corresponding sides
Distinguish between congruence (rigid motions only) and similarity (rigid motions plus dilation)
Apply similarity transformations to verify that two given figures are similar
Articulate the formal definition of similarity in terms of transformations

Review first:

Slides

Step through the lesson, or watch it as a narrated video

Define similarity

✓ Start here

Watch as video

Practice

Try it on your own

Exercise

Practice problems, checked as you go

Was this lesson helpful?

Report a problem with this page