Different Triangles

Help your third grader make sense of the three distinct types of triangles: the equilateral triangle, the isosceles triangle and the scalene triangle. Once he can tell them apart, let him enjoy some extra triangle fun thrown in for kicks!

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Click on a worksheet in the set below to see more info or download the PDF.

Three Types of Triangles

Three Types of Triangles

This worksheet will introduce your child to the three types of triangles: the equilateral triangle, the isosceles triangle and the scalene triangle.
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Identifying Triangles

Identifying Triangles

On this geometry worksheet, your third-grader will look at the different triangles and label them as equilateral, isosceles, or scalene
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Equilateral Triangles

Equilateral Triangles

Help your child practice identifying equilateral triangles on this geometry worksheet.
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Isosceles Triangles

Isosceles Triangles

Help your child learn how to identify an isosceles triangle with this geometry worksheet.
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Scalene Triangles

Scalene Triangles

Help your child learn to recognize scalene triangles with this worksheet.
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Cards, Triangles, and Patterns

Cards, Triangles, and Patterns

Challenge your third grader to figure out the addition and subtraction patterns on this worksheet.
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Count the Triangles

Count the Triangles

See if your child can find all the triangles hidden on this geometry worksheet.
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