Open the line segment rotation application. Line segment AB is a 90° rotation counterclockwise of line segment CD. Click the 90° counterclockwise button. Are line segments AB and CD the same? What does this mean about how a line segment changes when you rotate it?

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?

Which two undefined geometric terms always describe figures with no beginning or end?

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?