There is no exact radius of the Earth, but the average is 3,959 miles or 20,903,520 feet.
The Earth is rotating on it's axis and because of this rapid rotation the Earth's poles tend to flatten. Which makes the radius from the center to the equator larger than from the center to the poles.
Depending on what "a circle of 480 feet" means, the radius will have different values. If the radius is 480 feet, then that is your answer. If the diameter is 480 feet, then its radius is 480/2 = 240 feet. If the circumference is 480 feet, then its radius is 480/2(pi) = 240/(pi) = 76.39 feet.
Since 'radius' usually applies to circles, a circle with a radius of 17 feet would have an area of 907.92 square feet.
If the diameter of the circle is 24 feet, then the radius is 12 feet.
The radius of a circle, if its circumference is 420 feet, is 66.8 feet.
The area of a circle with a radius of 3 feet is: 28.27 square feet.
Mercury's radius (at the equator) = 2440km or 0.3825 x Earths Venus' radius = 6052km or 0.9488 x Earths Earth's radius = 6378km Mars' radius = 3397km or 0.5323 x Earths Jupiter's radius = 71,492km or 11.21 x Earths Saturn's radius = 60,267km or 9.45 x Earths Uranus' radius = 25,557km or 4.01 x Earths Neptune's radius = 24,766km or 3.88 x Earths
Mercurys mean radius is around 2,439.7 km, which is around 38.39% of earth radius or 0.3829 Earths. Mercurys mass is around 3.3022×10 to the 23 kg, around 5.5% of earths mass or 0.055 Earths.
If the diameter is 5 feet then the radius is 2.5 feet. If the circumference is 5 feet then the radius is 0.79577 feet.
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If the circumference is 128 feet, the radius is 20.37 feet. If the diameter is 128 feet, the radius is 64 feet.
Depending on what "a circle of 480 feet" means, the radius will have different values. If the radius is 480 feet, then that is your answer. If the diameter is 480 feet, then its radius is 480/2 = 240 feet. If the circumference is 480 feet, then its radius is 480/2(pi) = 240/(pi) = 76.39 feet.
the sun's radius is and half a million bigger than the radius of the sun.
The radius is 4.3 feet.
The circumference of a circle with a radius of 79 feet is: 496 feet.
If the radius is 8 feet then the diameter will be 16 feet.
Mercury's radius (at the equator) = 2440km or 0.3825 x EarthsVenus' radius = 6052km or 0.9488 x EarthsEarth's radius = 6378kmMars' radius = 3397km or 0.5323 x Earths
Radius is half the diameter, so a radius of 50 feet the diameter will be 100 feet.