Lesson 3: Side lengths and angle measures of congruent figures

Before you have access to this lesson from the links below, click on “Materials” to see what’s covered. The exercise is expected to last for not more than 1 hour 3o minutes, and please, be ready to complete this lesson in ONE session. If you haven’t signed up for the IXL SKILLS package, the temporal login info that you purchase from the link below, will be valid for 48 hours. 

For temporal access: Click here.

Warmup: Priya and Tyler are discussing the figures shown below. Priya thinks that B, C, and D are scaled copies of A. Tyler says B and D are scaled copies of A.

Do you agree with Priya, or do you agree with Tyler? 

Activity #1 (30 minutes)

1. Topic: Side lengths and angle measures of congruent figures(Applet).

2. Explainer Video: Side lengths and angle measures of congruent figures.

Practice Exercise (30 minutes).

Topic: Side lengths and angle measures of congruent figures.

Quiz Time – (Two sets: 30 minutes).

Topic: Side lengths and angle measures of congruent figures (to be taken while you are logged in).

  1. An applet.
  2. An explainer video on "Side lengths and angle measures of congruent figures".
  3. A skills exercise from the IXL website on "Side lengths and angle measures of congruent figures". The questions exhibit an increasing order of difficulty. 
  4. Two sets of quizzes on "Side lengths and angle measures of congruent figures". The questions exhibit an increasing order of difficulty, and an average score of 80% expected.