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Math Example--Polygons--Polygon Classification: Example 6

Math Example--Polygons--Polygon Classification: Example 6

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Topic

Polygons

Description

This example features a pentagon labeled with vertices A, B, C, D, and E, where two angles are marked as 108 degrees, and the other angles are marked as "x". It demonstrates how to determine if a pentagon is regular by solving for the unknown angle measures.

Understanding polygon classification is essential in geometry as it helps students analyze and categorize shapes based on their properties. This collection of examples highlights different aspects of regular pentagons, emphasizing both side length and angle measure as defining characteristics.

Exposure to multiple worked-out examples is crucial for students to develop a comprehensive understanding of polygon classification. Each example presents a unique scenario, allowing students to apply problem-solving skills and reinforce their knowledge of regular polygon properties.

Teacher's Script: Let's analyze this pentagon, class. We see two angles marked as 108 degrees and others as "x". How can we determine if all angles are equal? Let's work through the problem-solving steps together to classify this polygon.

For a complete collection of math examples related to Polygons click on this link: Math Examples: Polygon Classification Collection.

Common Core Standards CCSS.MATH.CONTENT.5.G.B.3, CCSS.MATH.CONTENT.7.G.B.6
Grade Range 6 - 8
Curriculum Nodes Geometry
    • Polygons
        • Definition of a Polygon
Copyright Year 2013
Keywords polygons, classification