Mastering Perimeter & Area (Rectangles/Triangles)
Mathematics
Year 9
11 questions
~22 mins
0 views0 downloads
About This Worksheet
A worksheet covering Perimeter & Area (Rectangles and Triangles) for Year 9 students, focusing on understanding formulas and applying concepts to problem-solving scenarios.
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Mastering Perimeter & Area (Rectangles/Triangles)
Subject: MathematicsGrade: Year 9
Name:
Date:
Untitled Worksheet
Grade Year 9
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 3 cm.
[2 marks]2.
Find the area of a rectangle with length 12 m and width 5 m.
[2 marks]3.
What is the perimeter of a triangle with sides 7 cm, 9 cm, and 5 cm?
[2 marks]4.
Calculate the area of a triangle with base 10 m and height 4 m.
[2 marks]5.
A rectangle has a perimeter of 24 cm and a length of 7 cm. Find its width.
[3 marks]6.
A triangle has sides measuring 8 cm, 15 cm, and 17 cm. Is it a right-angled triangle? Show your reasoning.
[4 marks]7.
A rectangular garden is 20 meters long and 10 meters wide. If the fencing costs $12 per meter, what is the total cost to fence the garden?
[4 marks]8.
A triangle has an area of 30 cm² and a base of 10 cm. Find the height of the triangle.
[3 marks]9.
A bookshelf is 80 cm long and 30 cm high. What is its surface area if it is a rectangle with no thickness?
[2 marks]10.
A triangle has a base of 12 m and an area of 72 m². What is its height?
[3 marks]11.
Challenge: A farmer wants to fence a rectangular field with an area of 150 m². The length is 15 m. Find the width and the total fencing cost if fencing costs $10 per meter.
[5 marks]Quick Actions
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Details
- Created
- 12/30/2025
- Updated
- 12/30/2025
- Type
- worksheet