Free Printable WorksheetMathGrade 5Math CurriculumVA 5.12

5.139 Classify and Measure Angles Worksheet

Download our free printable Grade 5 Math worksheet on 5.139 Classify and Measure Angles. Ideal for classroom practice, homeschool learning, independent homework, and standardized test preparation. Available in both print-ready PDF and editable DOCX formats.

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 5 Math worksheet provides structured practice on 5.139 Classify and Measure Angles. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Skill description: Select the correct classification for angles as right, acute, obtuse, or straight and measure or identify angle measures using a protractor when appropriate. Select the diagram or classification that matches the figure’s attributes and uses correct vocabulary. Corresponding standards: VA 5.12.

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 5

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 5.139 Classify and Measure Angles skill assessments:

Problem 1Difficulty: Mastery
You measure an unknown angle with a protractor and get exactly 90 degrees. Which final answer uses both the measure and the correct vocabulary?
A90 degrees, acute angle
B90 degrees, right angle
C90 degrees, obtuse angle
D90 degrees, straight angle
Solution & Explanation:An exact measure of 90 degrees means the angle is a right angle.
Problem 2Difficulty: Mastery
A straight angle is 180 degrees. One adjacent part is 30 degrees. Which measure and classification describe the remaining part?
A30 degrees, acute
B90 degrees, right
C150 degrees, obtuse
D180 degrees, straight
Solution & Explanation:The remaining part is 180 − 30 = 150 degrees. A 150-degree angle is obtuse.
Problem 3Difficulty: Mastery
An angle measures 3 times 40 degrees. Which classification is correct?
Aacute angle
Bright angle
Cobtuse angle
Dstraight angle
Solution & Explanation:Three times 40 degrees is 120 degrees. A 120-degree angle is greater than 90 and less than 180, so it is obtuse.

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Frequently Asked Questions

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QIs this 5.139 Classify and Measure Angles 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 5 Math students. It aligns with educational standard VA 5.12 (Primary standard selected for prompt fields in this prompt cell: VA 5.12. Skill statement in this prompt cell: Select the correct classification for angles as right, acute, obtuse, or straight and measure or identify angle measures using a protractor when appropriate. Select the diagram or classification that matches the figure’s attributes and uses correct vocabulary. Associated standards listed with this skill in this prompt cell: VA 5.12. Use this prompt-provided wording as the supporting standard description for this workflow.).

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