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Radius is 8.5 what is the diameter?
Twice as much and so the diameter is 2 times 8.5 = 17 units
If the radio of a circle is 14 inches how much is its diameter?
You mean radius. The radius is half the height of a circle. The diameter is the full height. So, you would add 14 to itself.Therefore, the diameter of the circle is 28 inches.
How much fencing to enclose a circle 30' across?
2*pi*radius or pi*diameter
How much bigger is the area of a quadrant of radius 8 cm than a semicircle of a diameter 4 cm?
Twice as big.
What is pi radius and diameter?
The radius of a circle is the distance from the center to any point on the circle. The diameter is twice as much; it is the length of a line segment from one point on a circle to another point on it that passes through the center. Pi is a constant, equal to approximately 3.1416 (the exact value is irrational), which is defined as the ratio of the circumference of any circle to its diameter (all circles are similar so the ratio is always the same).
