SOLUTION: Helppp... A circular pizza of radius 12 cm is cut into equal wedge-shaped slices and the angle at the point of each pizza s 40. Calculate : (a) how many slices of pizza are obt

Question 907364: Helppp...
A circular pizza of radius 12 cm is cut into equal wedge-shaped slices and the angle at the point of each pizza s 40.
Calculate :
(a) how many slices of pizza are obtained?
(b) the area of each slice of pizza.
(c) the length of the crust in each slice.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
The entire area of the pie is

.
.
.
a) Each slice is 40 degrees, the entire pie is 360 degrees, so,

.
.
b) Each slice is 1/9 the total area,

.
.
c) The arc length of a circular sector is,

where is in radians.
There are radians in 360 degrees so,

So,

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