Plans and Worksheets for Grade 3
Plans and Worksheets for all Grades
Lessons for Grade 3
Common Core For Grade 3
Examples, videos and solutions to help Grade 3 students learn how to measure side lengths in whole number units to determine the perimeter of polygons.
Common Core Standards: 3.G.1
New York State Common Core Math Grade 3, Module 7, Lesson 12
Worksheets for Grade 3
How to find the perimeter of a polygon?
1. Measure and label the side lengths of the shapes below in centimeters. Then find the perimeter of each
2. Melinda draws two trapezoids to create the hexagon shown below. Use a ruler to find the side lengths of
Melinda’s hexagon in centimeters. Then find the perimeter.
3. Victoria and Eric draw the shapes shown below. Eric says his shape has a greater perimeter because it
has more sides than Victoria’s shape. Is Eric right? Explain your answer.
4. Jamal uses his ruler and a right angle tool to draw the rectangle shown below. He says the perimeter of
his rectangle is 32 centimeters. Do you agree with Jamal? Why or why not?
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