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​Q18: Question – Paper 1 – June 2018

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Content:

• Circumference of Circles
• Area of Circles
• Cylinders​

Quizzes:​

• Circumference of Circles
• Area of Circles
• Cylinders

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Question

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18)
​Here is a tunnel for a toy train.

The diagram below shows the cross section of the tunnel.

• AD is a semicircular arc of radius 10 cm
  
• BC is a semicircular arc of radius 7 cm
  
• The length of the tunnel is 30 cm
  

Work out the total area of all six faces of the tunnel.
Give your answer in terms of π.

[5 marks]

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