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Types of Angles: Acute, Obtuse, Right

This page has printable geometry PDFs on angle types. Most worksheets require students to identify or analyze acute, obtuse, and right angles. The more advanced worksheets include straight and reflex angles too.

Acute, Obtuse, Right Angles Worksheets

Angle Types:
Acute, Obtuse, Right

Types of Angles 1  FREE 
Identify the right, acute and obtuse angles.
3rd through 5th Grades
aTypes of Angles 1
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Common Core
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Types of Angles 2
Tell whether each angle is acute, obtuse, or right. Angles are within polygons.
3rd through 5th Grades
aTypes of Angles 2
Types of Angles: Task Cards
These printable task cards will challenge students to identify acute, right, and obtuse angles.
4th and 5th Grades
aTypes of Angles: Task Cards
Acute, Obtuse, and Right Angles
Look carefully at each illustration and find acute, obtuse, and right angles.
3rd through 5th Grades
aAcute, Obtuse, and Right Angles
Angle Estimates
Estimate each angle's measurement, tell what type of angle it is, and write the angle name.
4th through 6th Grades
aAngle Estimates
Notes - 3 Types of Angles
Two pages of notes with definitions of angles and types of angles.
3rd through 5th Grades
aNotes - 3 Types of Angles

Triangles:
Acute, Obtuse, Right

Triangle Types
Identify the acute, obtuse, and right triangles.
3rd through 5th Grades
aTriangle Types
Find the Missing Angle
Use your knowledge of triangles and angles to find the measurements of the missing angles.
3rd through 5th Grades
aFind the Missing Angle
See also:
Measuring and Drawing Angles

Practice measuring various angles with a protractor.

Angles: Complementary, Supplementary, Vertical

On these activities, students will identify complementary, supplementary, and vertical angles.

More Geometry Worksheets

Our geometry section covers a wide variety of topics, including polygons, circles, solid shapes, area, perimeter, tessellations, congruent and similar shapes, congruency, and much more.

Sample Worksheet Images

Acute, Obtuse, Right Angles

Types of Angles (Acute, Obtuse, Right)

Triangles/Angles Worksheet

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