Level 1
What fraction of the figure is shaded?
1 m
Level 2
Some campers decided to pitch their tents in a circle. The tents were evenly spaced out and numbered in order. The 3rd tent was pitched directly opposite the 11th tent. If 4 tents were taken down, how many tents were left?
2 m
Level 2
What is 23 of a complete turn?
2 m
Level 2
The circumference of a circular walking path is 720 m. 9 stools are placed along the path at an equal distance. Find the distance between any 2 stools.
2 m
Level 3
ABCD is a square of side 14 cm. The circle inside has an area of 154 cm2. What is the area of the shaded part?
3 m