Lesson Worksheet: Perimeter of Rectangles and Squares Mathematics • 3rd Grade

In this worksheet, we will practice finding the perimeters of rectangles and squares using multiplication, writing equations for the perimeter, and recognizing the formula for calculating the areas of these shapes.

Q1:

Find the perimeter of a rectangle whose length is 35 cm and width is 15 cm.

Q2:

Find the perimeter of the rectangle.

Q3:

Calculate the perimeter of the square 𝐴𝐵𝐶𝐷.

Q4:

Calculate, in meters, the perimeter of a square whose side length is 38 m.

Q5:

How many inches of matting are needed to frame a print that is 16 by 26 inches?

Q6:

A square has a side length of 9 cm, and a rectangle has a length of 3 cm and a width of 2 cm. Find the difference between the perimeters of the square and the rectangle.

Q7:

Find the perimeter of the following figure.

Q8:

Calculate the perimeter of the square 𝐴𝐵𝐶𝐷.

Q9:

Calculate the perimeter of the square 𝐴𝐵𝐶𝐷.

Q10:

Find the perimeter of a rectangle whose length is 14 cm and width is 11 cm.

Q11:

Calculate, in meters, the perimeter of a square whose side length is 32 m.

Q12:

Calculate, in meters, the perimeter of a square whose side length is 26 m.

Q13:

Calculate the side length of a square, in meters, whose perimeter is 24 m.

Q14:

If a wire having a length of 96 cm is folded to form a square, how long will each side be?

Q15:

Find the perimeter of a square whose side length is 19 cm.

Q16:

The table shows the relation between the side lengths of squares and their perimeters. Find the values of 𝑎, 𝑏, and 𝑐.

Side Length in Centimeters510𝑐
Perimeter in Centimeters𝑎𝑏4
  • A𝑎=20, 𝑏=40, 𝑐=1.
  • B𝑎=20, 𝑏=25, 𝑐=4.
  • C𝑎=15, 𝑏=30, 𝑐=1.
  • D𝑎=5, 𝑏=40, 𝑐=31.

Q17:

What is the perimeter of a square of side 15?

Q18:

In volleyball, the shape of the court on one side of the net is a square with a side length of 9 meters. What is the perimeter of one half of a volleyball court?

Q19:

What is the side of a square with perimeter 4?

Q20:

What is the perimeter of the given chess board?

Q21:

Part of an infield is a square that measures 60 feet on each side. What is the perimeter of this part of the infield?

Q22:

Find the length of a rectangle whose perimeter is 68 cm and width is 11 cm.

Q23:

The length of a rectangle is 10 cm, and its width is 4 cm. Find its perimeter if its length is increased by 4 cm.

Q24:

Find the perimeter of a rectangular lot that is 27 feet long and 19 feet wide.

Q25:

What is the perimeter of the given figure?

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