Matt cut a circular pizza into 9 equal silce of pizza on each of 5 plates. What is the measure for the angle on the left?
To solve this problem, we need to use the formula for the central angle of a slice of pizza in a circle.
The total degrees in a circle is 360 degrees. Dividing the circle into 9 equal slices means each slice will have a central angle of:
360 degrees / 9 slices = 40 degrees
Since there are 5 plates, we need to multiply the central angle by the number of plates to find the total angle used for cutting the pizza:
40 degrees/slice x 9 slices/plate x 5 plates = 1800 degrees
Therefore, the measure for the angle on the left is 1800 degrees.