Sorting Triangles and Quadrilaterals
4th Grade•45 minutes
Learning Objective
I can sort triangles and quadrilaterals by their attributes.
Key Concepts
Triangles are polygons that always have 3 sides and 3 angles.
Triangles can be classified by their sides and by their angles.
The three classifications for triangles based on their sides are: equilateral, isosceles, and scalene.
Practice Questions
This lesson includes 9 practice questions to reinforce learning.
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1. A triangle has angles measuring 60 degrees, 60 degrees, and 60 degrees. What type of triangle is it, based on its angles?
2. If a triangle has one angle that measures 90 degrees, what type of triangle is it?
3. Explain the difference between an equilateral, an isosceles, and a scalene triangle.
...and 6 more questions
Educational Video
Math Antics - Triangles
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