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Finding Perimeters: 4 of 4

 

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

A rectangle with 2 sides of 35 and 2 unknown sides

"Missing Length": 15

A square with sides of length 4 units

"Missing Length": 25

A rhombus with 2 sides of 20 units and 2 sides are unknown

"Missing Length": 30

A rectangle with 2 sides of 37 units and 2 sides are unknown

"Missing Length": 13

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

A rhombus with 4 unknown equal sides

"Missing Length": 5

A trapezoid shape made with 1 side of 5 1 side of 3 and one side of 4 and a perimeter of 18

"Missing Length": 6

A rectangle shape with 2 sides of 12 and a perimeter of 96

"Missing Length": 36

A rhombus with 2 sides of 15 and a perimeter of 90

"Missing Length": 30

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Back to the first perimeter worksheet in this series.

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Related Resources

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.

Example/Guidance

Info

Perimeter

Worksheet

 

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