Multiplicative relationships in circles

12 questions

1. Round 50.26548246 to 1 decimal place.
2. Round 3.14159265 to 3 significant figures.
3. The perimeter of the parallelogram is ___ units.
4. Select the rectangle with the largest perimeter.
5. a : b = 1 : 3. Find the value of b when a = 6.
6. a : b = 1 : 3. Find the value of a when b = 6.
7. Which part of the circle is labelled?
8. The ___ of a circle is the perimeter of the circle.
9. If a circle has a radius of 12 cm then its diameter will be ___ cm.
10. Which symbol represents the ratio between the diameter and circumference of a circle?
11. Which are the first three digits of \pi?
12. A circle with diameter 10 cm has a circumference of ___ cm.

License: OGL