Lesson: Perimeters of Rectangles with the Same Area Mathematics • 3rd Grade

In this lesson, we will learn how to draw rectangles with the same area using unit squares, count to find their perimeter, and compare these perimeters.

Lesson Video

Sample Question Videos

03:32
01:46

Lesson Worksheet

Q1:

True or False: Rectangles can have the same areas but different perimeters.

Q2:

Here are two rectangles with the same area. Which of them has the largest perimeter?

Q3:

Here are two rectangles.

True or False: Both rectangles have the same area.

True or False: Both rectangles have different perimeters.

Which rectangle has the smallest perimeter?