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Circles, SM-Bank 038

Evan rides his bike around a circular track with a radius of 150 metres.

He rides the track 5 days a week and wants to have ridden 230 kilometres by the end of the week.

What is the minimum number of laps, to the nearest whole lap, he must complete each day to achieve his target?  (3 marks)

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Circles, SM-Bank 035

Guerra slings a fire torch in a circle at the end of a 3 metre rope.
 

How far has the fire torch travelled after completing 15 circles?

Give your answer correct to the nearest whole number.  (2 marks)

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Circles, SM-Bank 021

Percy has a large shower head which has a diameter of 25.5 centimetres.

What is the circumference of the shower head in centimetres, correct to one decimal place?   (2 marks)
 
 

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Circles, SM-Bank 018 MC

Which of the following is the definition of the circumference of a circle?

  1. The distance across a circle passing through the centre.
  2. A portion of the circumference of a circle.
  3. The distance along the boundary of the circle.
  4. The distance from the centre of the circle to its circumference.
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Circles, SM-Bank 017 MC

Which of the following is the definition of the radius of a circle?

  1. The distance across a circle passing through the centre.
  2. A portion of the circumference of a circle.
  3. The distance around the circle.
  4. The distance from the centre of the circle to its circumference.
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Circles, SM-Bank 016 MC

Which of the following is the definition of the diameter of a circle?

  1. The distance across a circle passing through the centre.
  2. A portion of the circumference of a circle.
  3. The distance around the circle.
  4. The distance from the centre of the circle to its circumference.
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Circles, SM-Bank 015 MC

Which of the following is the definition of an arc?

  1. The distance across a circle passing through the centre.
  2. A portion of the circumference of a circle.
  3. The distance around the circle.
  4. A line that touches a circle at only one point.
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Rectilinear Figures, SM-Bank 027

A farmer uses the river bordering his property and fencing to create a large grazing paddock for his horses, as shown in the diagram below.

The fencing has 4-strand wiring which is also shown below.

Given that fencing is not required on the river boundary, how many kilometres of wire will be required to fence the rest of the paddock?  (2 marks)

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