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Students get to practice measuring angles using built-in protractors in this fun geometry activity! After measuring, they&#39;ll put their angle knowledge to the test by classifying each angle as acute, obtuse, right, or straight.

Measure and Classify Angles

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

Obtuse Triangles: Identifying Triangles

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

Identifying Triangles: Acute Triangles

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

The Missing Angle: Quadrilaterals

Help students learn how to use a protractor.

Protractor Practice

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

Identifying Triangles: Right Triangles

Supplementary, Complementary, Vertical, and Adjacent Angles

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