The circumference of a circle is calculated using the formula C = πd, where C is the circumference, π is a constant approximately equal to 3.14159, and d is the diameter of the circle. In this case, the diameter is 250 cm. Therefore, the circumference of the circle would be C = 3.14159 x 250 cm = 785.3975 cm.
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The radius is half the diameter, which is 125cm. 2pir is 2x125x3.14159 which is 785.4cm
Area in square mm = pi*1252
In a square shape, it's a square with sides a little under 16-ft long. In a circle shape, it's a circle with a diameter of about 17.9-ft. In a rectangle shape, there are many different ways to do it: (250 by 1), (50 by 5), (25 by 10), etc.
There is no such polygon whose interior angles add up to 250 degrees.
Area in square mm = pi*radiuis2
1 MCM means 1000 circular mils, and a circular mil is the area of a circle with diameter 1 mil ( that is 1/1000 of one inch). In metric terms, 1 MCM = 0.5067 sq mm