Mario cut a Circular pizza into nine equal slices. He put a slice of pizza on each of five plates. What is the measure for the angle of the slices that are left?
To find the measure of the angle of the slices that are left, you need to first calculate the total angle of a circle, which is 360 degrees.
Mario placed 5 slices on plates, leaving 9-5=4 slices that are left. To find the measure of the angle for each of the remaining slices, divide the total angle of a circle by the number of remaining slices:
360 degrees / 4 slices = 90 degrees
Therefore, the measure for the angle of the slices that are left is 90 degrees.