Surround yourself with knowledge about perimeter. An informative video shows viewers how to find the perimeter of a semicircle. It begins with an explanation of calculating the length of the semicircular arc and ends with adding on the diameter of the circle.

Concepts

perimeter, semicircle, circumference

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Additional Tags

math

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Instructional Ideas

• Use the resource as part of an intervention session
  

Classroom Considerations

• Scholars must be familiar with the concept of perimeter and with the circumference formula for circles
• Resource expects learners know how to use a scientific calculator to determine approximate values for expressions involving pi
  

Pros

• Provides additional practice problems and textbook examples
  

Cons

• Video quality is poor
  

Common Core

7.G.B.4