# geometry

posted by .

Suppose a slice of a 10-inch pizza has an area of 15 square inches.What is the angle of this slice?

• geometry -

Area of whole pizza = 100π , if by 10-inch pizza you mean a radius of 10
number of slices = 100π/15= 20.9 or 21 slices ?????
so the central angle of each slice = 360/21 = 17.1°

If the radius is 5 inches,
area = 25π
number of slices = 25π/15 = 5.2 ????
round off to 5 slices
angle at centre for each slice = 360/5.2 = 69
23°

Something tells me there is something wrong here.
Who cuts a pizza into 21 slices or 5 slices?

## Similar Questions

1. ### math

suppose a pizza slice is a circle sector with a 24 angle and a radius of 15 inches. If a can of pizza sauce will cover 94 square inches of pizza, how many cans of sauce are needed to cover this slice?
2. ### geometry

You have a slice of pizza with a central angle that measures 140° that you want to share with your friend. She cuts it through the vertex into two slices. You choose one slice that measures 60°. How many degrees are in the other …
3. ### calculus I

a slice of pizza, in the form of a sector of a circle, is to have a perimeter of 24 inches. What should be the radius of the pan to make the slice of pizza largest?

Manny loves to eat Cajun pizza. Each square inch of pizza is 8 calories. He orders a slice of pizza from a pizza with a diameter of 16 inches that is cut with a central angle of 20 degrees. How many calories does he eat?
5. ### Math

Manny loves to eat Cajun pizza. Each square inch of pizza is 8 calories. He orders a slice of pizza from a pizza with a diameter of 16 inches that is cut with a central angle of 20 degrees. How many calories does he eat?
6. ### Math

maria has a slice of pizza that is 1/6 of the pizza. Ben has a slice of pizza that is 1/3 of the pizza. Maria's slice is bigger. Draw pizzas to show how this is possible.
7. ### Math

Maria has a slice of pizza that is 1/6 of the pizza. Ben has a slice of pizza that is 1/3 of the pizza. Maria's slice is bigger. Draw pizzas to show how this is possible.
8. ### math

Suppose you had a slice of pizza that was cut from a 16” pizza. You measure the angle that it was cut at to be 0.6 radians. EXPLAIN how you could find the length of the crust on the slice of pizza. *
9. ### Per Calculus

An apple pie has a 12 inch diameter and the angle of one slice is 60 degrees. What is the area of that slice of pie?
10. ### geometry

You and your friend ordered a 12 cut pizza with a radius of 8 inches. How much cheese is needed to cover one slice of the pizza?

More Similar Questions