Mastering Circles: Area & Circumference
Mathematics
Grade 8
12 questions
~24 mins
0 views0 downloads
About This Worksheet
A worksheet covering Circles: Area & Circumference for Grade 8 students, including basic calculations and real-world applications.
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Mastering Circles: Area & Circumference
Subject: MathematicsGrade: Grade 8
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Untitled Worksheet
Grade Grade 8
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
What is the formula for the circumference of a circle?
[1 mark]2.
Calculate the circumference of a circle with radius 7 cm. (Use π ≈ 3.14)
[2 marks]3.
What is the formula for the area of a circle?
[1 mark]4.
Find the area of a circle with diameter 10 cm. (Use π ≈ 3.14)
[2 marks]5.
If the radius of a circle is 12 cm, what is its circumference? (Use π ≈ 3.14)
[2 marks]6.
A circle has a circumference of 31.4 cm. Find its radius. (Use π ≈ 3.14)
[2 marks]7.
A circular pond has a radius of 4 meters. Calculate its area.
[2 marks]8.
A playground is circular with a diameter of 20 meters. What is its area? (Use π ≈ 3.14)
[2 marks]9.
Reasoning: If the radius of a circle increases by 50%, how does its area change?
[2 marks]10.
Reasoning: A wire is wound around a circular track of radius 15 meters. How much wire is needed to make 3 loops?
[2 marks]11.
Challenge: A circular garden has a radius of 8 meters. If a path of width 2 meters is built around the garden, what is the area of the path?
[3 marks]12.
Real-world application: A car tire has a diameter of 24 inches. How many rotations does the tire make in traveling 1 mile? (Use π ≈ 3.14; 1 mile = 63,360 inches).
[3 marks]Quick Actions
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- Created
- 12/30/2025
- Updated
- 12/30/2025
- Type
- worksheet