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Worksheet on Perimeter

This worksheet on perimeter helps students practice finding the perimeter of different geometric shapes, including triangles, squares, rectangles, and irregular figures. Students will use perimeter formulas, add the lengths of sides, find missing side lengths, and solve perimeter word problems.

The worksheet includes a variety of perimeter questions with different units of measurement, such as centimeters, meters, millimeters, and kilometers. Students can practice calculating the perimeter of squares and rectangles, finding the perimeter of triangles, solving problems with unknown dimensions, and applying perimeter concepts to real-life situations.

These perimeter worksheets are useful for elementary and middle-grade students who want extra practice with measurement and geometry. An answer key is provided so students, parents, and teachers can check the solutions after completing the exercises.

Free Worksheet PDF

Perimeter Quiz

What Is Perimeter?

Perimeter is the total distance around the outside of a closed shape. To find the perimeter, add the lengths of all the sides. The answer is written in units such as centimeters (cm), meters (m), millimeters (mm), or kilometers (km).

Perimeter Formulas

Shape	Formula
△ Triangle	P = a + b + c
□ Square	P = 4 × side
▭ Rectangle	P = 2 × (length + width)

Free Printable Perimeter Worksheet:

Printable perimeter worksheet with practice questions on squares, rectangles, and triangles

FREE Printable PDF Download

I. Find the perimeter of the triangles having the following sides.

(i) 4 cm, 6 cm, 5 cm

(ii) 6.5 cm, 7 cm, 8 cm

(iii) 9 cm, 3 cm, 2 cm

(iv) 2.5 cm, 7.5 cm, 4 cm

II. Find the perimeter of the given triangles.

(i) An equilateral triangle with side 13 cm

(ii) An isosceles triangle whose two equal sides are 15 cm and the third side is 20 cm long.

(iii) A scalene triangle with side 12 m, 10 m and 5 m.

III. Find the perimeter of the triangle ABC in each case.

(i) AB = 3 cm, BC = 5 cm and AC = 4 cm

(ii) AB = 6 cm, BC = 9 cm and AC = 8 cm

(iii) AB = 14 cm, BC = 20 cm and AC = 16 cm

IV. Find the perimeter of the squares having the following sides.

(i) 6 cm

(ii) 9 cm

(iii) 4.5 cm

(iv) 5.5 cm

V. Find the perimeter of squares whose one side is given below.

(i) 15 m

(ii) 12.4 cm

(iii) 0.25 m

(iv) 6 mm

(v) 1.2 km

VI. Find the perimeter of a square in each case.

(i) One side = 6 cm

(ii) One side = 3.5 cm

(iii) One side = 6 cm

(iv) One side = 8.5 cm

(v) One side = 4.5 cm

(vi) One side = 7.5 cm

VII. Find the perimeter of rectangle having the following sides.

(i) length = 5 cm, breadth = 3 cm,

(ii) length = 9 cm, breadth = 4 cm,

(iii) length = 7.5 cm, breadth = 4.5 cm,

(iv) length = 8.4 cm, breadth = 5.6 cm

VIII. Find the perimeter of rectangles with the given dimensions.

(i) Length = 12 cm, Breadth = 4 cm

(ii) Length = 1.5 m, Breadth = 0.6 m

(iii) Length = 100 mm, Breadth = 35 mm

(iv) Length = 13 km, Breadth = 8 km

(v) Length = 11 m, Breadth = 70 cm

IX. Find the perimeter of the rectangle in each case.

(i) Length =15 cm; Breadth = 10 cm

(ii) Length = 8.5 cm; Breadth = 6 cm

(iii) Length = 12 cm; Breadth = 8.5 cm

(iv) Length = 10.5 cm; Breadth = 6.5 cm

X. Find the length of side of squares whose perimeter is given below:

(i) 48 cm

(ii) 56 m

(iii) 10.4 km

(iv) 7.2 m

(v) 360 mm

XI. The sides of a square are 5.5 cm each. Find its perimeter.

XII. Which of the figures given below have the most and least perimeter?

XIII. Find the unknown sides of the given figure:

Worksheet on Word Problems on Perimeter of Triangle, Squares and Rectangle:

XIV. Solve the following word problems on Perimeter.

(i) The length of a rectangle field is 200 m. If its perimeter is 700 m, find its breadth.

(ii) The sides of a triangular park are 14 m, 17 m and 20 m. Find its perimeter.

(iii) The perimeter of a rectangle hall is 24 m. If its length is 8 m, find its breadth.

(iv) A triangular field has sides 210 m, 180 m and 230 m long. How many metres of wire is required to fence the field?

(v) Ron jogs around a rectangular park of length 50 m and breadth 30 m. If he takes 10 rounds of the park each day, how much distance does he cover in a day in km?

(vi) The perimeter of a rectangular park is 62 cm. Its length is 17 cm. What will be its breadth?

(vii) The breadth of a rectangular field is 7 m. If the perimeter of the field is 38 m, find its length.

(viii) The perimeter of the square garden is 364 m. Find its side.

XV. Draw a rectangle with perimeter 16 cm and breadth 3 cm in the grid below.

XVI. Complete the following table for rectangle shapes.

XVII. Identify and name the figures given below. Also find perimeter of each shape using a ruler.

XVIII. Complete the following table:

XIX. Find the perimeter of:

(i) the triangle whose sides are 7 cm, 8 cm, and 10 cm.

(ii) the rectangle whose sides are 20 cm and 14 cm.

(iii) the square whose side is 25 cm.

XX. Complete the table given below for a rectangle figure:

Worksheet on Perimeter of Rectangular Figures

Worksheet on Perimeter of Plane Figures

XXI. Find the perimeter of each of the following figures:

Worksheet on Perimeter of Irregular Figures

XXII. Find the perimeter of the given figures:

Perimeter of an irregular shape practice problem

Answer Key for the Perimeter Worksheet

I. (i) 15 cm

(ii) 21.5 cm

(iii) 14 cm

(iv) 14 cm

II. (i) 39 cm

(ii) 50 cm.

(iii) 27 m.

III. Find the perimeter of the triangle ABC in each case.

(i) 12 cm

(ii) 23 cm

(iii) 50 cm

IV. (i) 24 cm

(ii) 36 cm

(iii) 18 cm

(iv) 22 cm

V. (i) 60 m

(ii) 49.6 cm

(iii) 1 m

(iv) 24 mm

(v) 4.8 km

VI. Find the perimeter of a square in each case.

(i) 24 cm

(ii) 14 cm

(iii) 24 cm

(iv) 34 cm

(v) 18 cm

(vi) 30 cm

VII. (i) 16 cm

(ii) 26 cm

(iii) 24 cm

(iv) 28 cm

VIII. (i) 32 cm

(ii) 4.2 m

(iii) 270 mm or 27 cm

(iv) 42 km

(v) 2340 cm or 23 m 40 cm

IX. Find the perimeter of the rectangle in each case.

(i) 50 cm

(ii) 29 cm

(iii) 41 cm

(iv) 34 cm

X. (i) 12 cm

(ii) 14 m

(iii) 2.6 km

(iv) 1.8 m

(v) 90 mm

XI. 22 cm

XII. (i) Least - (i)

(ii) Most - (ii)

XIII. (i) 18 cm

(ii) 10 cm

(iii) 12 cm

(i) 18 cm

XIV. (i) 150 m

(ii) 51 m

(iii) 4 m

(iv) 620 m

(v) 1.6 km

(vi) 14 cm

(vii) 12 m

(viii) 91 m

XV.

XVI.

S.No.	Length	Breadth	Perimeter
(i)	22 mm	8 mm	60 mm
(ii)	16 m	13 m	58 m
(iii)	25 cm	75 cm	200 cm
(iv)	12 km	8 km	40 km
(v)	20 cm	5 cm	50 cm

XVII. (i) Square, 12 cm

(ii) Hexagon, 12 cm

(iii) Triangle, 15 cm

(iv) Rectangle, 16 cm

(v) Rhombus, 12 cm

(vi) Octagon, 8 cm

XVIII. (i) 36 cm

(ii) 50 cm

(iii) 16 cm, 16 cm

(iv) 13 cm, 52 cm

(v) 17 cm

XIX. (i) 25 cm.

(ii) 68 cm.

(iii) 100 cm.

XX. (i) 7 cm

(ii) 25

(iii) 23.2 cm

XXI. (i) 18 cm

(ii) 22 cm

(iii) 44 cm

(iv) 21 cm

XXII. Perimeter = 30 cm

Play Perimeter Quiz Online:

Perimeter Challenge Quiz

Practice perimeter of triangles, squares, rectangles, and real-life shapes.

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Answer Review

Question	Your Answer	Correct Answer	Result

Frequently Asked Questions About Perimeter:

1. How do you find the perimeter of a square?

Answer:

Multiply the length of one side by 4: P = 4 × side.

2. How do you find the perimeter of a rectangle?

Answer:

Use the formula P = 2 × (length + width).

3. How do you find the perimeter of a triangle?

Answer:

Add the lengths of all three sides: P = a + b + c.

4. What units are used for perimeter?

Answer:

Perimeter is measured in units of length, such as centimeters, meters, millimeters, feet, or inches.

5. What is the difference between area and perimeter?

Answer:

Perimeter measures the distance around a shape, while area measures the space inside the shape.

About Author

Priyanka Ghosh, Founder of Math Only Math

Written by Priyanka Ghosh
Mathematics Educator | Founder of Math Only Math

Priyanka Ghosh has been teaching elementary and middle-school mathematics for over 12 years and specializes in creating simple, child-friendly math lessons and worksheets.