Free Printable WorksheetMathGrade 3Math Curriculum4.G.A.1 (extension)

3.121 Right Angles as Shape Attributes Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 3 Math worksheet provides structured practice on 3.121 Right Angles as Shape Attributes. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Select which angle shown is a right angle and choose which shapes have right angles. (CCSS 4.G.A.1 (extension); CCSS 3.G.A.1)

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 3

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 3.121 Right Angles as Shape Attributes skill assessments:

Problem 1Difficulty: Mastery
Why do a rectangle, a square, and a right triangle belong in the same right-angle group?
AEach shape has at least one right angle
BEach shape has no corners
CEach shape is round
DEach shape has exactly one side
Solution & Explanation:A rectangle and square each have four right angles, and a right triangle has one right angle. That shared attribute puts them in the same group.
Problem 2Difficulty: Mastery
An angle that is slightly wider than a square corner is still a right angle.
ATrue
BFalse
Solution & Explanation:A right angle must match a square corner exactly. Slightly wider than a square corner is not a right angle.
Problem 3Difficulty: Mastery
Which choice correctly names the right-angle attributes of a square?
AA square has 4 right angles and 4 square corners
BA square has 1 right angle and 3 curved corners
CA square has no right angles
DA square has 2 straight angles and 2 curved angles
Solution & Explanation:Every corner of a square is a square corner, so a square has 4 right angles.

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Frequently Asked Questions

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QIs this 3.121 Right Angles as Shape Attributes worksheet free for teachers and homeschoolers?

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Grade 3 Math students. It aligns with educational standard 4.G.A.1 (extension) (Primary standard selected for prompt fields in this prompt cell: CCSS 4.G.A.1 (extension). Skill statement in this prompt cell: Select which angle shown is a right angle and choose which shapes have right angles. Associated standards listed with this skill in this prompt cell: CCSS 4.G.A.1 (extension); CCSS 3.G.A.1. Use this prompt-provided wording as the supporting standard description for this workflow.).

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