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How well do you know your angles? Let's find out! Use this geometry resource to help your students identify and differentiate between important angles such as acute, obtuse, straight, and right angles.

Introduce your child to different angles starting with an obtuse angle and see him find the obtuse angles in this worksheet.

This colorful worksheet asks your fourth grade geometry detective to practice identifying right triangles.

Help your third-grader learn about right angle geometry with this simple geometry worksheet.

Help your fourth graders take their understanding of angles and lines to the next level with this creative geometry challenge! Students will have fun drawing various types of shapes based on written descriptions and your students' knowledge of angles.

Let your fourth grader play triangle detective: can she spot the acute triangles on this worksheet?

Turn your fourth grader into a geometry detective! How many degrees is each missing angle in these quadrilaterals?

In this excerpt from an upcoming math workbook, your junior detective will make a positive ID on obtuse, acute and right angles.

Is your fourth grader reluctant to practice geometry? This colorful worksheet, which explores obtuse triangles, may be just what he needs!

Put that protractor to good use! In this geometry worksheet your student will practice measuring each of these angles using a protractor.

Is your child in need of a geometry review? This worksheet covers the basic 2-D shapes, from circles and triangles to pentagons and hexagons.

What makes a polygon? Get your child in gear for geometry with this shape-shifting worksheet! Color code these shapes to show which ones are polygons.

This fun puzzle provides lots of angle practice for your child. Can they figure out which way the boat is facing after the last turn?

Use this year-end assessment to check students’ grasp of key fourth grade geometry concepts.

Find the missing angle in a triangle using addition and subtraction.

Help students learn how to use a protractor.

Learn some basic geometry with this worksheet all about the angle.