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Does the area of a circle treble if the diameter trebles?
No. The area of a circle is 3.142 x radius x radius (radius is half the diameter).
The diameter equals 18cm how do I find the area?
The general equation for the area of a circle is π*r2, where r is the radius of the circle, and π is pi, which is approximately 3.14159. The diameter of a circle is how far it is from one side of the circle to the other, and the radius is how far it is the from edge to the center, thus the radius is half the diameter. Therefore the area is π*(92) ~ 254.47
How do you find the center and radius of a circle?
just use the area formula ex... area of circle= pi(r square) if you know what your area is then plug it in then do PI / by area that will be your diameter to get the radius / your answer by 2
How do you find the radius and diameter of the circle if you know the area?
Area of Circle = pi (radius)2 So , using this formula we can find the radius and also the diameter. Diameter = 2(radius)
In soccer what is the area of the center circle?
diameter of a soccer center circle is 10 meters. means the radius is 5 meters. area of a circle is (pi)*(r)squared. approximately 78.5398.
The formula for the area of a circle?
A = πr2 π (pi) = 3.14159 r (radius) = distance from the center to the edge, or exactly half of the diameter.
How do you find a diameter of a circle?
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)
How do you work out the area of a circle with only the diameter?
By dividing the diameter by 2 will give the circle's radius. Area of any circle = pi*radius squared.
What is the formula for sovling the area of a circle?
A = pi*r2 Where A = Area of the circle pi = the constant pi = 3.14 (approximately) r = radius, the distance from the center of the circle to the edge. If you have the diameter, divide it by two to get the radius
What is the radius and diameter of circle area 530.66cm2?
Radius = about 13cm Diameter = about 26cm
If area of circle is 100pi what is the diameter?
Oh, isn't that a happy little question! If the area of a circle is 100π, we can use the formula for the area of a circle, which is πr^2. So, 100π = πr^2. By solving for the radius (r), we find that the radius is 10 units. And since the diameter is just twice the radius, the diameter would be 20 units.
find the length of the radius the circumference and the area of the circle the center is 20 feet use 3.14 for pi?
radius = diameter/2 circumference = 2*pi*radius or pi*diameter area = pi*radius2
