Standard Formula: Challenge & Extension
Mathematics
Grade 7
11 questions
~22 mins
1 views0 downloads
About This Worksheet
A worksheet focusing on the standard formula for calculating the perimeter of rectangles, designed for challenge and extension with a variety of question types.
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Full preview • 11 questions
Standard Formula: Challenge & Extension
Subject: MathematicsGrade: Grade 7
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Untitled Worksheet
Grade Grade 7
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Calculate the perimeter of a rectangle with length 8 cm and width 5 cm.
[2 marks]2.
A rectangle has a length of 12 meters and a perimeter of 48 meters. Find its width.
[3 marks]3.
Construct a rectangle on the grid with a perimeter of 20 units, where the length is 7 units. Draw and label the sides.
[3 marks]4.
A garden is rectangular, with a length of 15 meters and a width of 4 meters. What is its perimeter?
[2 marks]5.
Plot the graph of y=2x on the grid. Use this to find the perimeter of a rectangle with length 6 units and width 4 units.
[4 marks]6.
A rectangle's length is twice its width. If the perimeter is 36 cm, find the length and width.
[3 marks]7.
A rectangular picture frame has a perimeter of 60 cm. If the length is 4 cm more than the width, find the dimensions of the frame.
[4 marks]8.
Identify the mistake: A student calculated the perimeter of a rectangle with sides 9 and 5 as 28 cm, using the formula 2*(9+5). Is this correct? If not, fix the mistake.
[3 marks]9.
A rectangle has a perimeter of 50 units. Its length is 3 units less than twice its width. Find the length and width.
[4 marks]10.
Challenge: A rectangle's length is increased by 4 units and its width is decreased by 2 units. The new perimeter is 42 units. Find the original dimensions of the rectangle.
[5 marks]11.
Mixed Review: A square has a perimeter of 24 cm. Using the standard formula, verify its side length.
[2 marks]Quick Actions
What is Remix?
Create a new worksheet based on this one. Change the grade level, topic, number of questions, or difficulty - then generate a fresh version.
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet