Venus' radius is 6052 kilometers. You can derive the other measurements by using the standard formulae for circles and spheres (and assuming that Venus is spherical, which is a fairly good approximation).
OK, SO to find the area of a circle, you find the radius (half of the diameter), and fit it into the equation πr2=A where r equals radius and A = area. The perimeter of a circle is π multiplied by the diameter. π is ≈ 3.1415296.
Mower for his money. This comes from a cool (and pretty easy once you get the formulas down) math worksheet. Just remember these things: Radius is 1/2 distance across. Diameter is all the way across. Circumference is found by multiplying the Diameter by pie. (Diameter x 3.14 = Circumference) Area is determined by multiplying the radius times the radius(radius squared, or r^2) times pie. (Radius x Radius x 3.14 = Area, or Radius^2 x 3.14) =D
OK, The circumference of a circle is 2 times pi (3.14) times the radius. SO the radius is = to circumference (5cm) divided by 2 times pi. 5 divided by 6.28 = .796 time 2 gives us a diameter of = 1.59 centimeters. We could also use Pi = cicumference/diameter therefore 3.14=5/x Multiply both side by x and 3.14 x = 5 Divide both sides by 3.14 and you get x= 5 divided by 3.14 which equals 1.59 cm
the equation for the area of a circle is π(pi)r² so pi times radius squared. the side length of the square will be your diameter, so divide that by 2 to get the radius and plug that into your formula, and you will have the are of the circle. hope that helped.
The circumference of a circle of 7 inches is: about 21.99 inches. You can easily do this calculation for other circles by multiplying the diameter by Pi (about 3.1416).
Diameter:6 radius:3 circumference:6(pi) area:9(pi)
If you have the circumference: circumference = (pi) * diameter diameter = circumference / (pi) If you have the area: area = (pi) * radius * radius radius = square_root(area / pi) radius = diameter / 2 diameter = 2 * square_root(area / pi)
Circumference is about: 44 Area is about: 153.94
Use the formulae for the area and circumference of a circle, replacing the symbol for the radius or the diameter with the known radius or diameter. As a reminder, the radius is 1/2 the diameter.Circumference = pi x diameter area = pi x radius squared
Area Diameter Radius Circumference
Pi is the number of times the diameter of a circle will fit into the circumference. Pi is not a circle, and does not have a circumference or area. To calculate a circumference USING pi, the circumference is diameter * pi. To find the area using pi, area = pi * radius * radius
Circumference: multiply the diameter by pi (approximately 3.1416). Area: Divide the diameter by 2 to get the radius. Then use the formula area = pi x r2, where r is the radius.
They would have to give you enough information to eventually get the diameter. If they gave you the area of a circle and asked for the circumference, you can determine the radius, and from the radius the diameter, and then the circumference. If they said "What is the circumference if the area of a circle is 36pi?" Area of a circle is pi*r2, which would give us a value for r = 6 Diameter is 2*r, or = 12. Circumference is d*pi, or 12pi
perimeter (circumference): diameter times pi (3.14) area: radius times radius times pi (3.14) Area = pi*radius squared Circumference = 2*pi*radius or pi*diameter
The answer will depend on what information you have: radius, area, diameter.
Five is what, again? Radius, diameter, area?
Circumference of a circle = 2*pi*radius or diameter*pi Area of a circle = pi*radius squared