Compare the ratio of diameter to circumference for several circles to establish all circles are similar.
Clarifications:
Essential Understandings
Concrete:
- Given two circles and a non-circle (oval, egg shape, etc.), identify the circles as similar.
- Using two circles of different sizes, place one on top of the other (translations) to prove the circles are similar by stretching or shrinking (dilations).
- Using a compass, protractor, or geometry software, create and compare similar circles of different sizes.
General Information
Number: MAFS.912.G-C.1.AP.1a
Category: Access Points
Date Adopted or Revised:
07/14
Cluster:
Understand and apply theorems about circles. (Geometry - Additional Cluster) :
Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.
Related Standards
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