# Classifying triangles

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##### Intros

###### Lessons

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##### Examples

###### Lessons

**Classifying triangles by side lengths**

Classify the triangle by its side lengths. Is it scalene, isosceles, or equilateral?**Classifying triangles by angles**

Classify the triangle by its angles. Is it acute, right, or obtuse?**Classifying triangles by more than one type**

Classify the triangle by BOTH its side length and angles. (scalene, isosceles, or equilateral; acute, right or obtuse)**Word Problems: Classifying Triangles**

Use this figure to answer the following questions:- If a triangle's side lengths are: 2cm, 1cm, and 1.73cm how would you classify it and why?
- If this triangle is a right triangle, what types of angles does it have?
- Is it possible for this triangle to have an obtuse angle? Why or why not?
- If this right triangle has one angle that is 30°, give the measures of all three of the angles.

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