Diameter: Challenge & Extension

Mathematics
Grade 6
17 questions
~34 mins
1 views0 downloads

About This Worksheet

A worksheet challenging students to understand and apply the concept of diameter in circles, including problem solving and real-world applications.

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Diameter: Challenge & Extension

Subject: MathematicsGrade: Grade 6
Name:
Date:
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Untitled Worksheet

Grade Grade 6
A

Practice Questions

Answer all questions. Show your working in the grid spaces provided.
1.
If the radius of a circle is 7 cm, what is its diameter? Show your working.
[2 marks]
2.
A circle has a circumference of 44 cm. Calculate its diameter. (Use π ≈ 3.14)
[3 marks]
3.
Identify the diameter in the following description: 'A line passing through the center of a circle, touching both sides.'
[1 mark]
4.
Construct a circle with a radius of 4 cm on the grid and draw its diameter.
[3 marks]
B

Fluency & Practice

Answer the following questions to strengthen your procedural understanding of diameters.
1.
Calculate the diameter of a circle with a circumference of 31.4 cm. (Use π ≈ 3.14)
[2 marks]
2.
If the diameter of a circle is 18 cm, find its radius.
[2 marks]
3.
What is the relationship between radius and diameter?
[2 marks]
4.
A circle’s radius is 5 cm. Draw its diameter on the grid.
[3 marks]
C

Problem Solving & Reasoning

Solve the following multi-step problems and explain your reasoning clearly.
1.
A bicycle wheel has a diameter of 70 cm. How many revolutions does the wheel make when it travels 7 km? (Use π ≈ 3.14)
[4 marks]
2.
A circular garden has a radius of 12 m. The gardener wants to plant a path along the diameter. How long will the path be? Show your working.
[4 marks]
3.
Explain why the diameter is always twice the length of the radius in a circle.
[3 marks]
D

Real-world Applications

Apply your understanding of diameter to practical situations.
1.
A car tire has a diameter of 60 cm. How many times does the tire rotate in covering 1 km? (Use π ≈ 3.14)
[4 marks]
2.
A circular swimming pool has a radius of 8 meters. Find the length of the diameter for setting up the pool’s border.
[2 marks]
E

Challenge & Extension

Tackle these advanced problems to deepen your understanding of diameter concepts.
1.
A circular track has a diameter that is 25% longer than its radius. If the radius is 40 meters, what is the diameter? Show your working.
[3 marks]
2.
Construct a circle with a diameter of 12 cm on the grid. Then find its radius and verify the relationship between radius and diameter.
[3 marks]
F

Mixed Review & Error Analysis

Answer the questions and identify any common mistakes made.
1.
A student calculates the diameter of a circle with radius 9 cm as 18 cm. Is this correct? If yes, explain why. If not, correct the mistake.
[2 marks]
2.
A measurement error occurs when a student states the diameter of a circle with radius 5 cm as 10 cm. Is this mistake valid? Why or why not?
[2 marks]

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Details

Created
1/1/2026
Updated
1/1/2026
Type
worksheet