3rd Grade Lines and Angles Worksheets
3rd Grade Lines and Angles Worksheets
Welcome to our 3rd Grade Lines and Angles Worksheets!
In this collection, students will explore key concepts such as classifying inside and outside angles, measuring angles, and identifying complementary, supplementary, adjacent, and vertical angles. They’ll also learn about lines, including parallel, perpendicular, and intersecting lines.
Feel free to use and reproduce these worksheets for practice at home or in the classroom. Understanding lines and angles is essential for everyday problem-solving, and with consistent practice, students will build confidence in their geometric skills.
Angles (Printable PDFs)
Students will practice identifying which angles are acute, obtuse, or right angles in the first 6 worksheets. For the last 3 angles worksheets in this section, they will also identify straight and reflex angles.
Identify angles as acute, obtuse, or right. - Worksheet #1
Identify angles as acute, obtuse, or right. - Worksheet #2
Identify angles as acute, obtuse, or right. - Worksheet #3
Identify angles as acute, obtuse, or right. - Worksheet #4
Identify angles as acute, obtuse, or right. - Worksheet #5
Identify angles as acute, obtuse, or right. - Worksheet #6
Identify angles as acute, obtuse, right, straight, or reflex.. - Worksheet #1
Identify angles as acute, obtuse, right, straight, or reflex.. - Worksheet #2
Identify angles as acute, obtuse, right, straight, or reflex.. - Worksheet #3
Measure Angles (Printable PDFs)
To measure angles, students will need to use a protractor. After measuring, on some worksheets, students will then label the angles as acute, obtuse, right, reflex, or straight.
6 Problems - Worksheet #1
6 Problems - Worksheet #2
6 Problems - Worksheet #3
9 Problems - Worksheet #1
9 Problems - Worksheet #2
9 Problems - Worksheet #3
6 Problems - Worksheet #1
6 Problems - Worksheet #2
6 Problems - Worksheet #3
Complementary, Supplementary, Adjacent and Vertical Angles (Printable PDFs)
In this section of worksheets, students will answer a series of questions related to the worksheet topic. They will answer questions, including true or false questions, related to complementary, supplementary, adjacent, and vertical angles.
Complementary Angles Practice Worksheet #1
Supplementary Angles Practice Worksheet #1
Complementary and Supplementary Angles Practice Worksheet #1
Adjacent and Vertical Angles Practice Worksheet #1
Adjacent and Vertical Angles Practice Worksheet #2
Lines (Printable PDFs)
Students will identify and draw parallel, perpendicular, or intersecting lines. They will also answer a series of questions relating to sets of lines to gain a better understanding. For example, they will list pairs of intersecting lines, select true or false, and more.
Label lines as parallel, perpendicular or intersecting. - Worksheet #1
Label lines as parallel, perpendicular or intersecting. - Worksheet #2
Draw parallel, perpendicular or intersecting lines. - Worksheet #1
Practice Worksheet #1
Practice Worksheet #2
Practice Worksheet #3