Volume
A cylinder has a radius of 4cm and a height of 5 cm. What is the volume?
Approximately 251cm3.
A bar graph shows the number of books read by each class, but the y-axis starts at 50 instead of 0.
Why might this make the graph misleading?
Because starting the axis at 50 makes small differences look much bigger than they really are.
The area of a square increases from 144cm2 to 225cm2. By how many centimetres did the length of a side of the square increase?
3cm.
(√144 = 12; √225 = 15; difference = 3 cm.)
A recipe uses a ratio of 3 cups of flour to 2 cups of sugar.
If you use 9 cups of flour, how much sugar do you need?
6 cups