Please enter your email: The distance measured around a circle is called the ……. A. brim B. circumference C. diameter D. radius 2. A line which joins the centre of a circle to a point on the circumference is called a ……. A. centre line B. diameter C. half distance D. radius A line which passes through the centre of a circle and joins two points on its circumference is called a ……. A. centre line B. circumference C. diameter D. radius What can be calculated using π r^{2}? A. Area of a circle B. Circumference of a circle C. Diameter of a circle D. Volume of a circle What is the area of a circle with a radius of 7 cm (to one decimal place)? A. 53.9 cm2 B. 153.9 cm2 C. 315.9 cm2 D. 513.9 cm2 To the nearest square metre, what is the area of a circular pool with a radius of 10 m? A. 114 m2 B. 214 m2 C. 314 m2 D. 414 m2 The area of a circular lawn is 628 m^{2}. How far is it across to the nearest metre? A.20 B.24 C.28 D.32 What is the correct formula for the circumference of a circle? A. C = 2πr B. C = 2πd C. C = 2π D. C = 3πr A circular lawn has a 20 m radius. What is the approximate circumference of the lawn? A. 100 m B. 126 m C. 150 m D. 175 m 10. A round table has a diameter of 200 cm. What is the approximate circumference of the table? A. 286 cm B. 628 cm C. 1,256 cm D. I need to know the radius first Loading … Question 1 of 10