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## Classify triangles by side lengths (scalene, isosceles, and equilateral) and angle measure (acute, right, obtuse, isosceles and equiangular). 0606.4.4

1. Acute One Or An Obtuse One? - [grades 5-8] six page worksheet to print and use in class[This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.]
2. Angle Classification: Acute, Right, Obtuse - explanation and questions to answer
3. Angles - Students practice their knowledge of acute, obtuse and alternate angles.
4. Angles - Interactive game to help recognize angles.
5. Basic Geometric Figures - a TAKS worksheet to print and use in class [This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.]
6. Classifying Angles - five multiple choice questions
7. Geometry Building Blocks: Classifying Angles - explanation and drawings
8. How Do We Measure Angles? - six page worksheet to print and use in class
9. Measuring Angles - Practice lining up and reading a protractor while you measure a set of angles in a fun learning activity or
10. Measuring Angles - use a virtual protractor or
11. Names of Angles - definition and drawings of each type or
12. Right, Acute, and Obtuse Angles - sort angles into appropriate containers or
13. Right, Acute, and Obtuse Angles - figures are shown, decide which is the proper angle
14. Triangle Explorer - Students learn about areas of triangles and about the Cartesian coordinate system through experimenting with triangles drawn on a grid.
15. Triangles Side-By-Side - use geometric vocabulary to describe properties of triangles
16. Types of Angles - definitions, and drawings of each type
17. Virtual Protractor - ten online activities investigating angles or

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