Worksheet

# Classify Triangles Worksheet

## 5 problems

Angles can be classified based on their measure in degrees. Here are some common classifications:

• Acute angle: An angle with a measure between 0 and 90 degrees.
• Right angle: An angle with a measure of exactly 90 degrees.
• Obtuse angle: An angle with a measure between 90 and 180 degrees.
• Straight angle: An angle with a measure of exactly 180 degrees.
• Reflex angle: An angle with a measure between 180 and 360 degrees.
• Full angle: An angle with a measure of exactly 360 degrees.
Triangle Theorems
4.G.A.2

It's also possible to classify angles based on the relationship between the rays that form the angle. Here are some common classifications:

• Complementary angles: Two angles whose measures add up to 90 degrees.
• Supplementary angles: Two angles whose measures add up to 180 degrees.
• Conjugate angles: Two angles whose measures add up to 360 degrees.
• Linear pair: Two angles whose non-common sides are opposite rays.
• Vertical angles: Two angles formed by two intersecting lines.

It's also possible to classify angles in Triangles and Polygons based on their position and sides.

## Teaching Classify Triangles Easily

1. Introduce the concept of triangles and their basic properties, such as their number of sides and angles.
2. Introduce the three main classifications of triangles: equilateral, isosceles, and scalene. Explain the characteristics of each type of triangle and provide examples.
3. Have students practice identifying triangles based on their characteristics through worksheets. This can be done through worksheets, group activities, or hands-on projects.
4. Review and assess student understanding through quizzes, tests, or other formative assessments.

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