Lesson Plan


An interesting problem that has students find the area of a particular section of a circle that resembles the pupil of a snake eye. The result is rather surprising, because the area does not involve pi.


  • Mathematics > General
  • Mathematics > Applied Mathematics
  • Mathematics > Equations
  • Mathematics > Estimation
  • Mathematics > Graphing
  • Mathematics > Problem Solving
  • Mathematics > Trigonometry

Education Levels:

  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12




Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution 3.0


This resource has not yet been aligned.
Curriki Rating
On a scale of 0 to 3
On a scale of 0 to 3

This resource was reviewed using the Curriki Review rubric and received an overall Curriki Review System rating of 2, as of 2008-10-02.

Component Ratings:

Technical Completeness: 2
Content Accuracy: 3
Appropriate Pedagogy: 2

Reviewer Comments:

This is an interesting activity that could be used with advanced geometry students when discussing the area of a sector. Suggested use would include administering this worksheet with advanced students while working with students needing individualized attention.

Not Rated Yet.

Non-profit Tax ID # 203478467