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Since your circle has a diameter of 9 feet (the definition of a "9 by 9" circle), the radius is half of that distance. In this case, your radius is 4.5 feet or 54 inches.

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Q: What is the radius of a 9ft by 9 ft circle?
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Related questions

What is the circumference of a 9ft circle?

If 9 ft is the diameter then 9 pi ~ 28.2743339 If 9 ft is the radius then 18 pi ~ 56.5486678


How do you find the circumfrence of a circle if you have the radius?

the circumfrence of a circle is pi times it's radius squared.


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.


What is 11ft x 9ft in square feet?

11 ft * 9ft = 11*9 sq ft = 99 sq ft


If a circle has a diameter of 18 feet what is the circumference of the circle?

Circumference = 2(pi)r if diameter = 18ft then the radius is 9ft, so: Circumference = 2(pi)9 = 56.54ft =] -ray


What is square foot of 18ft diameter circle?

area of circle = pi x radius squared where pi = 3.1416 radius = diameter/2 = 18/2 = 9 ft area = 3.1416 x 9 x 9 sq ft = 254 sq ft


9ft x 9ft in square meters?

9 ft by 9 ft = 81 square feet 81 square feet = 7.52515 square meters.


What is the radius of a 250 sq ft circle?

250 sq.ft. is the area of the circle. Apply the Area eq'n A = pi r^2 Algebraically rearrange r^2 = A/ pi r = sqrt(A/pi) Substituting r = sqrt( 250/3.141592....) r = sqrt(79.57747165...) r = 8.920620581.... ft. r = 8 ft 11.047... inches. ~ 9ft


9ft how many yards?

9 ft = 3 yrds.


9 ft equal to how many yd?

9ft = 3yds


What is 9 feet plus 1 third?

9 feet + 1/3 of 9 feet = 9 ft + 9/3 ft = 9ft + 3 ft = 12 ft.


What is the diameter of a circle with a 9 radius?

The diameter of a circle is twice the radius. A circle with a radius of 9 would have a diameter of 18. (9*2=18).