Basic Geometry: Anatomy of an Angle

Angle your way to geometry greatness! Third graders and fourth graders practice naming and identifying angles in this worksheet on basic geometry.

The worksheet begins with an explanation and diagram of what makes up angles and the three types. Students then classify nine angles as acute, obtuse, and right based on a picture, and pick the letter that represents the vertex. After that, they answer three questions by naming the type of angle based on its relation to 90°.

For more geometry practice, check out “See in a set” to view additional Geometry Basics: Perimeter, Area, and Angles worksheets.