Pass Check: Circles
Calculate circumference, area, arc length and sector area using pi = 3.142.
Circumference
The distance around the outside of a circle.
Radius
The distance from the centre of a circle to its edge; half the diameter.
Arc
A part of the circumference of a circle.
Sector
A 'pizza slice' region of a circle, bounded by two radii and an arc.
Quick check
Mixed quiz
1. Calculate the circumference of a circle with diameter 15 cm. Give your answer to 1 decimal place.
2. Calculate the circumference of a circle with diameter 10 cm. Give your answer to 1 decimal place.
3. Calculate the area of a circle with radius 5 cm. Give your answer to 1 decimal place.
4. Calculate the circumference of a circle with diameter 13 cm. Give your answer to 1 decimal place.
5. Calculate the area of a circle with radius 8 cm. Give your answer to 1 decimal place.
6. Calculate the circumference of a circle with diameter 11 cm. Give your answer to 1 decimal place.
7. Calculate the circumference of a circle with diameter 12 cm. Give your answer to 1 decimal place.
8. Calculate the area of a circle with radius 9 cm. Give your answer to 1 decimal place.