Lesson 12: Area of compound figures with triangles

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. 

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Warmup: Draw an example of an obtuse triangle with an area of 6 square units.

Activity #1 (30 minutes)

1. Topic: (Applet).

2. Explainer Video: Area of compound figures with triangles.

Practice Exercise (30 minutes).

Topic: Area of compound figures with triangles.

Quiz Time – (Two sets: 30 minutes).

Topic: Area of compound figures with triangles(to be taken while you are logged in).

  1. An applet.
  2. Explainer video on "Area of compound figures with triangles".
  3. Exercise questions on "Area of compound figures with triangles". The questions exhibit an increasing order of difficulty. 
  4. Two sets of quizzes on "Area of compound figures with triangles". The questions exhibit an increasing order of difficulty, and an average score of 80% expected.