OAS 3.GM.2.1 Worksheets

OAS 3.GM.2.1 (Oklahoma, 3rd Grade): "Find the perimeter of a polygon, given whole number lengths of the sides, using a variety of models." The worksheets below practice this standard. Each one is a free printable PDF with an answer key, comes in multiple versions, and can also be assigned digitally - no login or account needed.

3.GM.1.3

Geometry & Measurement (GM) 3.GM.2 Understand measurable attributes of real-world and mathematical objects using various tools. 3.GM.2.1Find the perimeter of a polygon, given whole number lengths of the sides, using a variety of models.

3.GM.2.2

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3.GM.2.1

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Quadrilaterals (Perimeter)

3md8

• Find the perimeter of a rectangle by adding the lengths of all four sides.
• Use the fact that opposite sides of a rectangle are equal to find the two lengths that are not labeled.
• Recognize that perimeter is a distance around a figure and is measured in ordinary units, not square units.

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Version 1

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Version 6

Version 7

Version 8

Version 9

Version 10

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Perimeter (Real Objects)

3md8

• Find the perimeter of a real rectangular object from its labeled width and height.
• Read a measurement from a dimension line on a diagram.
• Use the fact that opposite sides of a rectangle are equal to account for the two sides that are not labeled.
• Attach the correct unit to a perimeter and recognize that it is a length, not an area.