answersLogoWhite

0


Best Answer

Area= pi × radius2

Area= 3.14 × (4.5 in2)

Area= 3.14 × 20.25

Area= 63.585 in2

The answer is 63.585. You would find this answer by doing this:

20.25

x3.14

_______

8100

20250

+607500

_______

635850

Then you would take the zero off the end.

User Avatar

Wiki User

βˆ™ 12y ago
This answer is:
User Avatar
More answers
User Avatar

ProfBot

βˆ™ 4mo ago

The area of a circle is calculated using the formula A = Ο€r^2, where r is the radius of the circle. Since the diameter is twice the length of the radius, the radius of a 9-inch diameter circle would be 4.5 inches. Plugging this into the formula, the area of the circle would be A = Ο€(4.5)^2 = 63.585 square inches.

This answer is:
User Avatar

User Avatar

Anonymous

Lvl 1
βˆ™ 4y ago

81

This answer is:
User Avatar
User Avatar

chris norman

Lvl 1
βˆ™ 2y ago
81 is the area of a 9 inch SQUARE, not a circle.

Add your answer:

Earn +20 pts
Q: What is the area of 9 inch diameter circle?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Whats the area of a 9 inch diameter?

If you mean a circle area than A = 63.61725 inch². Area A = pi times diameter² / 4.


What is the area of 18 inch diameter circle?

Area = pi*9*9 square inches


What is the circumference of 9 inch diameter circle?

The circumference of 9 inch diameter circle is about 28.27 inches.


What is the area of a circle with a diameter of 9 inches?

The area of a circle with a diameter of 9 inches is: 63.62 square inches.


If a circle has a 9 yard diameter what is the area?

A circle with a diameter of 9 yards has an area of 63.62 square yards.


How many square feet are in a 14 feet 9 inch circle?

A circle with a diameter of 14 feet 9 inches has an area of: 170.87 square feet.


What is the square ft of a 9 ft circle?

The area of a circle with a diameter of 9 feet is 63.6 sq ft (approx).The area of a circle with a diameter of 9 feet is 63.6 sq ft (approx).The area of a circle with a diameter of 9 feet is 63.6 sq ft (approx).The area of a circle with a diameter of 9 feet is 63.6 sq ft (approx).


What is the circumference of a circle with a 9 inch diameter?

(9 pi) inches is.


How calculate area circle?

The formula for finding the area of a circle is pi * r², where pi = 3.14; * = multiply; r = 1/2 of the diameter; and ² = squared (multiplied by itself). An example of how to calculate the area of a circle with a 6 inch diameter (3 inch radius): a = Pi * r² a = 3.14 * 3² a = 3.14 * 9 a = 28.26


What is the area of a 12 inch and a 9 inch circle?

The area of a circle is calculated using the formula A = Ο€r^2, where r is the radius of the circle. For a 12-inch circle, the radius is half of the diameter, so the radius is 6 inches. Therefore, the area of the 12-inch circle is A = Ο€(6)^2 = 36Ο€ square inches. Similarly, for a 9-inch circle, the radius is 4.5 inches, so the area of the 9-inch circle is A = Ο€(4.5)^2 = 20.25Ο€ square inches.


What is the diameter of a 9 inch circumference?

To find the diameter of a circle with a 9-inch circumference, you can use the formula for circumference: C = Ο€d, where C is the circumference and d is the diameter. In this case, C = 9 inches. Rearranging the formula to solve for the diameter, you get d = C / Ο€. Substituting in the known values, the diameter of a circle with a 9-inch circumference is approximately 2.87 inches.


What is the area of a circle that is 9 meters?

The area of a 9-meter diameter circle is 63.617 square meters.