If the circumference of a circle is 62.8 meters the diameter is: 20 meters.
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The circumference of a circle can be calculated using the formula C = 2πr, where C is the circumference, π is a constant approximately equal to 3.14159, and r is the radius of the circle. In this case, the radius is given as 100m, so plugging this value into the formula, we get C = 2 * 3.14159 * 100 = 628.318 meters. Therefore, the circumference of a circle with a radius of 100m is approximately 628.318 meters.
To find the radius of a circle with a given area of 628, you can use the formula for the area of a circle, A = πr^2, where A is the area and r is the radius. Rearranging the formula to solve for the radius, you get r = √(A/π). Substituting the given area of 628 into the formula, you get r = √(628/π) ≈ √(199.87) ≈ 14.14. Therefore, the radius of the circle is approximately 14.14 units.
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At least 628.
628