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  1. The distance measured around a circle is called the …….
 
 
 
 

2.  A line which joins the centre of a circle to a point on the circumference is called a …….

 
 
 
 
  1. A line which passes through the centre of a circle and joins two points on its circumference is called a …….
 
 
 
 
  1. What can be calculated using π r2?
 
 
 
 
  1. What is the area of a circle with a radius of 7 cm (to one decimal place)?

 

 
 
 
 
  1. To the nearest square metre, what is the area of a circular pool with a radius of 10 m?
 
 
 
 
  1. The area of a circular lawn is 628 m2. How far is it across to the nearest metre?
 
 
 
 
  1. What is the correct formula for the circumference of a circle?
 
 
 
 
  1. A circular lawn has a 20 m radius. What is the approximate circumference of the lawn?
 
 
 
 

10. A round table has a diameter of 200 cm. What is the approximate circumference of the table?

 
 
 
 

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