Define and identify: circumference, radius, diameter, arc, arc length, chord, secant, tangent and concentric circles.
Remarks
Example: What is the angle between a tangent to a circle and the radius at the point where the tangent meets the circle?General Information
Subject Area: X-Mathematics (former standards - 2008)
Grade: 912
Body of Knowledge: Geometry
Idea: Level 1: Recall
Standard: Circles - Define and understand ideas related to circles (radius, tangent, chord, etc.). Perform constructions, and prove theorems related to circles. Find measures of arcs and angles related to them, as well as measures of circumference and area. Relate geometry to algebra by finding the equation of a circle in the coordinate plane.
Date Adopted or Revised: 09/07
Content Complexity Rating:
Level 1: Recall
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More Information
Date of Last Rating: 06/07
Status: State Board Approved - Archived
Assessed: Yes
Related Access Points
Alternate version of this benchmark for students with significant cognitive disabilities.
Related Resources
Vetted resources educators can use to teach the concepts and skills in this benchmark.
Image/Photograph
Lesson Plan
Video/Audio/Animation
Student Resources
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Parent Resources
Vetted resources caregivers can use to help students learn the concepts and skills in this benchmark.
Image/Photograph
Clipart: Geometric Shapes:
In this lesson, you will find clip art and various illustrations of polygons, circles, ellipses, star polygons, and inscribed shapes.
Type: Image/Photograph
Video/Audio/Animation
Story of Pi:
This video dynamically shows how Pi works, and how it is used.
Type: Video/Audio/Animation