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The circumference of a circle is 18pi inches Determine the area of the circle?
First we have to find the radius: 2*pi*radius = 18*pi Divide both sides by 2*pi to find the radius: radius = 9 inches Area of a circle = pi*radius2 Area = pi*92 = 81pi or 254.4690049 square inches
If a pizza is 9 inches in diameter and you split the pizza in 8 equal parts what is the area of one of the slices rounded to the nearest 1000th?
7.952 square inches
What is the circumference and diameterof a circle with a radius of 9 inches?
A circle with a radius of 9 inches has a circumference of 56.55 inches and a diameter of 18 inches.
What is the area of a 12 inch and a 9 inch circle?
If you are talking about 9 and 12 inch diameter, then divide both by 2 to get the radius. The area of a circle is pi (3.1415 is good for most calculations) multiplied by the square of the radius. So for the 12 inch circle, the radius is 6. The square of the radius is 36, and multiplying this by pi gives approximately 113.1 square inches. Now the 9 inch circle has a radius of 9/2 or 4.5. Squaring this we get 20.25, which multiplied by pi is approximately 63.6 square inches. If 9 and 12 were already the radius in the problem, just don't divide by 2 since you already have the radius.
What is the area of a circle with a radius of 9 ft?
A circle with a radius of 9 feet has an area of 254.47 square feet.
IF a whole pizza has 8 slices and each pizza slice measures 9 inches from the point at the center of the pizza to the edge of the crust how much area would the slice have?
9 inches is your radius. Use that to calculate the area of the whole pizza and then divide by 8. (You do not need any sections or angles).
If The exact area of a circle is 81pi square inches what are the radius and diameter of the circle explain?
The radius is 9 inches because area of circle is pi*9 squared = 81pi square inches and the diameter is twice the radius which is 2*9 = 18 inches
Find the area of a circle with a radius of 9 inches?
254.47 square inches.
If the radius of a circle is two inches what is the area and circumference?
2 inch radius = 12 9/16" circumference & an area of 12.56637 sq. inches.
A large pizza costs 9.95 and a small pizza costs 5.95 Which is the better deal?
That depends on the radius of each pizza (and how close to the edge the toppings go.) Let's call the small pizza a 6 inch pizza - that's a radius of 3 inches and a total area of 9(pi) square inches or 28.2744 square inches. At 5.95 that's 4.752 square inches per dollar. For a pizza costing 9.95 to be better value the square area would need to be 47.2824, which when divided by pi gives a radius of 3.879 inches - and a diameter of 7.758. So, if the large pizza is over an inch and a quarter wider, and if the toppings are proportionately distributed, then the large pizza is better value...... but only if you're going to eat it all. If you don't eat it all then you'll have paid more and eaten the same amount..
What is the area in square inches of a circle with diamter of 1.5ft?
The circle's radius is 1.5/2 = 0.75 ft = 9 inches The area of the circle is (pi) times (radius)2 = (pi) x (9)2 = 254.469 square inches (rounded)
The cylinder above has a radius of 4 inches and a height of 9 inches What is the surface area?
326.73 inches2
What is the radius of 9 inches?
9 inches.
What is a circumference of a circle with the radius of 9 inches?
A circle with a radius of 9 inches has a circumference of 56.55 inches.
The circumference of a circle is 18pi inches Determine the area of the circle?
First we have to find the radius: 2*pi*radius = 18*pi Divide both sides by 2*pi to find the radius: radius = 9 inches Area of a circle = pi*radius2 Area = pi*92 = 81pi or 254.4690049 square inches
If a pizza is 9 inches in diameter and you split the pizza in 8 equal parts what is the area of one of the slices rounded to the nearest 1000th?
7.952 square inches
How do you calculate the price per square inch of pizza?
To calculate the price per square inch of pizza, you will need to know the area if the pizza in square inches, and the price of the pizza. For example, let's say you have a 12 inch pizza that cost 5 dollars. Pizzas are generally measured in diameter, so the diameter of the pizza is 12 inches, and the radius is half of that, or 6 inches. The formula for the area of a circle is (1/2)(pi)(radius)2, which, in this case, is (1/2)(pi)(6 in)2, or about 56.5 in2. We now know the area and the price. The formula for price per square inch is what is sounds like: (price)/(area in in2). In this case, it is (5)/(56.5), or about .089 dollars. So this pizza costs about 9 cents per square inch.
