Game Roomby Lauren Fulton Math

8.8.D — Triangle Angle Sum, Exterior Angles, Parallel Lines, and AA Similarity Practice

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AI-generated practice for 8.8.D — use informal arguments to establish facts about the angle sum and exterior angle of triangles, the angles created when parallel lines are cut by a trans; teacher-reviewed

  • 12 questions
  • Multiple choice
  • Updated Oct 2026

The first 4 questions are shown here.

  1. A triangle has two interior angles measuring 50° and 60°. What is the measure of the third angle?

    Multiple choice
  2. A triangle has interior angles of 90° and 45°. What is the measure of the third angle?

    Multiple choice
  3. A triangle has two interior angles measuring 40° and 65°. What is the measure of the exterior angle at the third vertex?

    Multiple choice
  4. An exterior angle of a triangle measures 130°. One of the remote interior angles measures 55°. What is the measure of the other remote interior angle?

    Multiple choice

+ 5 more questions

Questions 5 to 12 and all 12 answers are not on this page, so students cannot search for them. They come with the bank the moment it is in your account.

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Looking for a classroom review game?

8.8.D — Triangle Angle Sum, Exterior Angles, Parallel… is a ready-made grade 8 mixed math review question bank you can play as a jeopardy-style quiz game on your board, or as a solo practice game on student devices. If you are looking for Kahoot alternatives, Blooket alternatives or Gimkit alternatives for mixed math review review, you can create a free account and play this bank with your class today -- no student accounts, no app to install.

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The standard

Texas TEKSTEKS 8.8.DGrade 8
use informal arguments to establish facts about the angle sum and exterior angle of triangles, the angles created when parallel lines are cut by a trans

All TEKS 8.8.D banks

Subject: Math. Topic: Mixed math review. Grade: Grade 8.

Questions teachers ask

Are the answers included?

Yes. They are not on this page so students cannot look them up. They come with the bank when you add it to your account.

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No. Students join with your teacher code and a first name. There are no student emails or passwords.

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