Calculating Perimeter Worksheet
Find the perimeter of five shapes, including a decagon, pentagon and star.

- Grades
- Grades 3–5, Elementary
- Pages
- 1
- File type
- Preparation
- Print ready
- Subject
- Math, Geometry, Measurements
- Topic
- Perimeter, Polygons
- Resource types
- Worksheets & Printables, Worksheets
- Preparation
- Print ready
About this resource
What's inside this resource
This worksheet is a great resource for teachers who want to help their students practice finding the perimeter of two-dimensional shapes. The worksheet includes a variety of shapes, some with missing side lengths, so students can get plenty of practice.
In the classroom
Teaching tips & learning objectives
Learning objectives
Explain perimeter as the total distance around a shape.
Teaching tips
Mark each outside edge as students include it in their sum. Where lengths are omitted, discuss the equal-side assumption before calculating.
Skills covered
Adding side lengths
Identifying equal sides
Good to know
Questions teachers ask about this resource
Are all side lengths written on the shapes?
No. Some questions rely on identifying equal sides from the intended shape.
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Resource details
Concepts & topics
Core concepts
Perimeter
Polygon sides
Topics
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