Free Printable WorksheetMathGrade 4Math Curriculum4.G.A.2

4.161 Identify Polygons and Name Polygons by Number of Sides Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 4 Math worksheet provides structured practice on 4.161 Identify Polygons and Name Polygons by Number of Sides. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Given a figure, select whether it is a polygon and/or select its correct name based on number of sides. (CCSS 4.G.A.2)

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Grade 4

Subject

Math

Domain

Math Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 4.161 Identify Polygons and Name Polygons by Number of Sides skill assessments:

Problem 1Difficulty: Mastery
A student must choose a polygon named by number of sides. The figure is closed and made of 6 straight sides, but one side is much shorter than the others. Which final answer is correct?
AIt is a polygon and a hexagon.
BIt is not a polygon because sides must be equal.
CIt is a pentagon because the short side does not count.
DIt is an octagon because different side lengths add sides.
Solution & Explanation:A polygon can have side lengths that are not equal. A closed figure with 6 straight sides is a hexagon.
Problem 2Difficulty: Mastery
Look at the four figures shown. Figure 1 is closed with 3 straight sides, Figure 2 is closed with 7 straight sides, Figure 3 is a circle, and Figure 4 is open with 7 straight segments. Which classification is correct?
AFigure 1 is a triangle and Figure 2 is a heptagon; Figures 3 and 4 are not polygons.
BFigures 1 and 4 are triangles; Figures 2 and 3 are not polygons.
CAll four figures are polygons because each is a figure.
DOnly Figure 3 is a polygon because it is closed.
Solution & Explanation:Figure 1 is a triangle, and Figure 2 is a heptagon. A circle has a curved edge, and Figure 4 is open, so those are not polygons.
Problem 3Difficulty: Mastery
Which answer gives the best reason a regular-looking stop sign outline is an octagon?
AIt has 8 straight sides and is closed.
BIt is red in real life.
CIt has curved corners.
DIt has 10 straight sides.
Solution & Explanation:The polygon name comes from the number of sides. A closed figure with 8 straight sides is an octagon.

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Frequently Asked Questions

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QIs this 4.161 Identify Polygons and Name Polygons by Number of Sides worksheet free for teachers and homeschoolers?

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QCan students practice 4.161 Identify Polygons and Name Polygons by Number of Sides online with instant feedback?

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Grade 4 Math students. It aligns with educational standard 4.G.A.2 (Primary standard selected for prompt fields in this prompt cell: CCSS 4.G.A.2. Skill statement in this prompt cell: Given a figure, select whether it is a polygon and/or select its correct name based on number of sides. Associated standards listed with this skill in this prompt cell: CCSS 4.G.A.2. Use this prompt-provided wording as the supporting standard description for this workflow.).

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