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Name:______________________

The perimeter of each of the four shapes below is **100**. Calculate and write the "missing lengths."

"Missing Length": 15

"Missing Length": 25

"Missing Length": 30

"Missing Length": 13

Use the perimeters to find and write the missing side for the shapes below.

"Missing Length": 5

"Missing Length": 6

"Missing Length": 36

"Missing Length": 30

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Back to the first perimeter worksheet in this series.

The various resources listed below are aligned to the same standard, (3MD08) taken from the CCSM (Common Core Standards For Mathematics) as the Measurement Worksheet shown above.

*Solve real world and mathematical problems involving perimeters of polygons, including finding the perimeter given the side lengths, finding an unknown side length, and exhibiting rectangles with the same perimeter and different areas or with the same area and different perimeters. *

- Finding Perimeter Using Unit Lengths
- Finding Perimeter With Full Dimensions
- Finding Perimeter With Partial Dimensions
- Perimeter e.g. various polygons