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Parts of Circles
Circumference
Diameter & Radius
Area of Circles
Volume of Cylinders
100
What is the name given to the perimeter of a circle?
circumference
100
What is the circumference of a circle with a diameter of 9 cm? (to 2 decimal places)
28.27 cm
100
What is the diameter of a circle with a radius of 15 cm?
30 cm
100
What is the area of a circle with a radius of 5 cm? (to 1 decimal place)
78.5 square centimetres
100
What is the volume of a cylinder with a radius of 3 cm and a height of 12 cm? (to the nearest whole number)
339 cubic centimetres
200
What is the name given to half of a circle?
semi-circle
200
What is the circumference of a circle with a radius of 9 cm? (to 2 decimal places)
56.55 cm
200
What is the radius of a circle with a circumference of 37 cm? (to 1 decimal place)
5.9 cm
200
What is the area of a circle with a radius of 4.9 cm? (to 1 decimal place)
75.4 square centimetres
200
What is the volume of a cylinder with a radius of 5 cm and a height of 12.2 cm? (to 1 decimal place)
958.2 cubic centimetres
300
What is the name of a line drawn from the centre of a circle to the circumference?
radius
300
What is the circumference of a circle with a diameter of 12.6 m? (to 1 decimal place)
39.6 m
300
A machine makes circular paper plates of circumference 50 cm. Find to 1 decimal place the diameter of the plates?
15.9 cm
300
What is the area of a circle with a diameter of 13 cm? (to 1 decimal place)
132.7 square centimetres
300
What is the volume of a cylinder with a diameter of 52.4 cm and a height of 36.9 cm? (to the nearest whole number)
79 575 cubic centimetres
400
What is the name of the point inside a circle which is an equal distance from all points on the circle?
centre
400
What is the arc-length of a semi-circle with radius of 6 cm? (to 2 decimal places)
18.85 cm
400
A trundle wheel has a circumference of 1 metre. Find to 1 decimal place the radius of the trundle wheel.
15.9 cm
400
What is the area of a semi-circle with a radius of 4 cm? (to the nearest whole number)
25 square centimetres
400
What is the volume of one-quarter of a cylinder with a radius of 4.2 cm and a height of 21 cm? (to the nearest whole number)
291 cubic centimetres
500
What is the name given to part of the circumference?
arc
500
What is the perimeter of a quarter circle with a radius of 3 cm? (to 1 decimal place)
10.7 cm
500
A car wheel has a circumference of 1.57 metres. Calculate the diameter of the wheel, correct to the nearest centimetre.
0.5 m or 50 cm
500
What is the area of a sector with an angle of 45 degrees and a radius of 11 cm? (to the nearest whole number)
48 square centimetres
500
What is the volume of half a cylinder with a diameter of 16 cm and a height of 25 cm? (to the nearest whole number)
2513 cubic centimetres