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Worksheet
Curated OER

Find the Perimeter of Triangles

For Students 5th - 7th
In this perimeter worksheet, students calculate the perimeter of various different triangles. There are four problems to solve.
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Worksheet
Curated OER

Perimeter and Coin Problems

For Students 9th - Higher Ed
In this writing algebraic equations worksheet, students write the equation and solve the given word problems. There are 14 perimeter and 12 coin problems. Answers are on the bottom of the pages.
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Lesson Plan
Curated OER

Triangle Attributes and Measures

For Teachers 7th
Seventh graders explore the concept of triangles. In this triangles lesson, 7th graders sort triangles according to various attributes such as acute, obtuse, isosceles, or equilateral. Students find the area and perimeter of triangles.
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Worksheet
Curated OER

Perimeter and Area of Triangles (B)

For Students 4th - 5th
In this geometry activity, students calculate the perimeter and area for each of 4 triangles using the given measurements. They work with measurements that are labeled in centimeters.
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Worksheet
Curated OER

Perimeter and Area of Triangles 2

For Students 5th
In this measurement worksheet, 5th graders study the different triangles and then use the given measurements to find the perimeter and area for each.
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Worksheet
Curated OER

Calculating the Perimeter of a Triangle

For Students 5th
In this geometry worksheet, 5th graders read how to find the perimeter of a triangle. They use the P= S1+S2+S3 formula to find the perimeter of three triangles.