answersLogoWhite

0

The formula for a circle's area is pi*radius*radius.

The diameter is equal to two times the radius.

D = 2*radius

So, the radius is 4.5 cm

Area = pi*radius*radius = 3.14159 * 4.5cm * 4.5cm = 63.617 cm2

User Avatar

Wiki User

13y ago

What else can I help you with?

Related Questions

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.


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

28.27 cm


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 area of the shaded region of a circle if the diameter is 18 centimeters and the area shaded is 270?

To find the area of the shaded region, you first need to calculate the area of the entire circle. The radius of the circle is half the diameter, so it is 9 centimeters. The area of the circle can be calculated using the formula ( A = \pi r^2 ), which gives approximately ( 254.47 ) square centimeters. Since the shaded area is given as 270 square centimeters, this indicates that the shaded region exceeds the area of the circle, suggesting a possible error in the given dimensions or a misunderstanding of the problem.


What is the area of a circle with a radius of 9 centimeters?

The area of a circle with a radius of nine centimeters is: 254.5 cm2


What is the circumference of a circle that is 9 cm?

If 9 cm is the diameter, I think the circumference should be 9 times pi centimeters, which is approximately 28.274333882308139146163790449516 centimeters for the circumference. *********************************************** The circumference of a circle can be found by multiplying pi ( π = 3.14 ) by the diameter of the circle. Thus: 3.14 x 9 = 28.26cm


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

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


What is the area of a circle 9 in diameter?

3.14


What is the diameter of a circle that has a circumference of 28.3 centimeters?

28.3/pi ie 9 cm


What is the exact area of a circle having a diameter?

Exact area of the circle: 9*pi inches


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

The area is 63.617 dm2