You find a slice of pizza whose edges form a 25 degree angle

You find a slice of pizza whose edges form a 25 degree angle with an outer crust edge 4 inches long. What was the diameter of the original pizza?

Solution

As circle makes 360 angle at the centre. So our piece will be a part of it.

Circumference of pizza=4*360/25

As circumference=d

So, *d=4*360/25

d=18.34inches