Yes. The radius is from the centre to the edge of the circle. Therefore, 2xr is twice as long and is the diameter of the circle.
diameter = 2 X radius
Diameter = 2 x (radius) = 20.8
Diameter = (2 x radius) = 2 x 12 = 24 inches
28 diameter = 2 X the radius 2 X 14 = 28
The area of any circle is (pi) x (radius)2 .The radius is 1/2 of the diameter.
diameter = 2 X radius
The diameter of a circle is twice its radius (d = r x 2).
For a circle: circumference = 2 x π x radius. As the diameter of a circle is 2 x radius: circumference = π x diameter.
The radius X 2 = diameter.
Diameter = 2 x (radius) = 20.8
Diameter = (2 x radius) = 2 x 12 = 24 inches
28 diameter = 2 X the radius 2 X 14 = 28
The area of any circle is (pi) x (radius)2 .The radius is 1/2 of the diameter.
That depends on what information is given.Area of a circle: A = pi x radius squaredSolving for radius: radius = root(A/pi)Diameter of a circle = 2 x radiusSolving for radius:radius = diameter / 2Circumference of a circle: circumference = 2 x pi x radiusSolving for radius:radius = circumference / (2 x pi)
Diameter = 2 x radius = 34 cm.
Very easy. The diameter of a circle is twice the radius, so: diameter = r x 2
Diameter = 2 times the radius = (2 x 8.5) = 17 cm