Angles: Right Angle

The right measure is often hard to find. Given a diagram of two angles that make up a right angle and one of their measures, scholars learn how to find the other angle measure. They watch a video that explains the process and covers a few examples.

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CCSS: Adaptable
Instructional Ideas

  • Apply the video as part of an intervention strategy
Classroom Considerations

  • Note that the video does not use the term complementary angles
  • Learners should be familiar with the right angle mark

  • Provides a worksheet with additional practice problems for pupils to attempt on their own

  • Does not use equations, which most higher level courses likely require
Common Core