Question

Is this right? I had to find the interior and arc length of a pizza I created with a diameter of 14 inches.
Solved for the Pizza with 8 slices
C= pi x d or C= pi x 14= 44
Circumference is 44 inches
44/8= 5.5 inches divided into 8 pieces
360/8= 45 Each angle is 45 degrees
45/360= 1/8
45/360(pd)
45/360 (px14)
0.125(14)(p) 1.75(pi)= 5.49 which rounds to 5.5
The interior angle is 45 degrees and the arc length is 5.5inches.
Area for 8 sliced pizza
Area of whole circle divided by 8
A= pi x r2/8
A= pi x 142/8 or = pi x 196/8
A= pi x 24.5= 77.07 in2

Answer 1

thats right

Answer 2

thx

Answer 3

actually wait, you have use the diameter when you should have used the radius when finding the area

Answer 4

I don't think I did any of this right actually because I just looked at my problem again and I actually have to find the interior angle and arc length of each slice of pizza for a 14in. pizza with 8 slices

Answer 5

And then the area of each slice

Answer 6

This is the entire question.

Number of Slices
Determine how many slices you will cut your pizza into. You need to pick two different numbers of slices.

Once you have determined the number of slices, calculate the following for both ways of cutting your pizza:
•the interior angle and arc length of the slices
•the area of each slice

Please show your work for all calculations.
Step 3: Delivery Radius
Determine the delivery radius for your shop. Draw a point on a coordinate plane where your shop will be located. Create two different radii lengths from your shop, and construct the circles that represent each delivery area.
•How much area will each delivery radius cover?
•Write the equation for each circle created.

Please show your work for all calculations.

Answer 7

\[\text{interior angle} = 360°/n\]\[C=2\pi r\qquad \text{arc}=\frac Cn=\frac{2\pi r}n\]\[A=\pi r^2\qquad a=\frac An=\frac{\pi r^2}n\]

Answer 8

is that how I find the interior angle and area of each slice?

Answer 9

...and arc length

Answer 10

?

Answer 11

yeah

Answer 12

ok umm what does "n" stand for... sorry im stupid

Answer 13

oh i was using n for the number of slices

Answer 14

oh ok

Answer 15

\[interior \angle= 360degrees/8 = 45 degrees = the interior \angle of 1 slice of pizza\]

Answer 16

is that right?

Answer 17

yeah if you have 8 slices yes

Answer 18

is the arc length 1.75?

Answer 19

and is the area of a slice 19.25??

Answer 20

i think you forgot to multiply the arc length by pi

and yes, the area of the slice is 19.24,

Answer 21

ok so do I just multiply 1.75 by pi?

Answer 22

yeah

Answer 23

would it be 5.5?

Answer 24

yes it would

Answer 25

ok thank you so much, I would give you a medal or whatever but I just created this account and I have no idea what I am doing. But again thank you so much !!

Answer 26

This may help: http://is.gd/lvRal9