Download MA.912.G.2.1 - Identify and describe convex, concave, regular, and

Standard #: MA.912.G.2.1Archived Standard
This document was generated on CPALMS - www.cpalms.org
Identify and describe convex, concave, regular, and irregular polygons.
Subject Area: X-Mathematics (former standards - 2008)
Grade: 912
Body of Knowledge: Geometry
Standard: Polygons - Identify and describe polygons (triangles, quadrilaterals, pentagons, hexagons, etc.), using
terms such as regular, convex, and concave. Find measures of angles, sides, perimeters, and areas of polygons,
justifying the methods used. Apply transformations to polygons. Relate geometry to algebra by using coordinate
geometry to determine transformations. Use algebraic reasoning to determine congruence, similarity, and
symmetry. Create and verify tessellations of the plane using polygons.
Content Complexity Rating: Level 3: Strategic Thinking & Complex Reasoning - More Information
Date Adopted or Revised: 09/07
Status: State Board Approved - Archived
Assessed: Yes
Date of Last Rating: 06/07
Remarks/Examples
Example 1: Draw a hexagon. Is it convex or concave? Is it regular or irregular? Explain your answers.
Example 2: Define the terms convex, concave, regular and irregular polygon and draw a picture of the tern next to the definition.
Related Access Points
Independent
Access Points Number
MA.912.G.2.In.a:
Access Points Title
Determine if polygons have all sides and angles equal (regular) or have sides or angles that are not equal (irregular)
using physical and visual models.
Supported
Access Points Number
MA.912.G.2.Su.a:
Access Points Title
Identify polygons with all sides and angles equal (regular) in the environment.
Participatory
Access Points Number
MA.912.G.2.Pa.a:
Access Points Title
Identify objects or pictures with polygons.
Related Resources
Image/Photograph
Name
Clipart: Geometric Shapes:
Description
In this lesson, you will find clip art and various illustrations of polygons, circles, ellipses, star polygons, and inscribed
shapes.
Parent Resources
Name
Clipart: Geometric
Shapes:
Description
In this lesson, you will find clip art and various illustrations of polygons, circles, ellipses, star polygons, and inscribed shapes.
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