Circumference of any circle = (pi) x (diameter) = (pi) x (2 x radius) = 14 pi = 43.982 (rounded)
Remember in taxicab geometry pi=4
Not in this case, my friend. Taxicab geometry is non-Euclidean. How far will a taxi drive in a city around a circle of radius 7? Picture four points in the cardinal directions each 7 blocks from downtown. How far to drive from one to all three others and back? Label them N, E, W, and S (not very original, but mnemonic). From N to E, no matter which way you go as long as you are heading south and east, is 14 blocks. Continuing around is going to be 56 blocks. â–
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if you mean a radius of 5 units then the answer is 78.54 APEX
The equation for a circle is PiD. The diameter is double the radius, so it is 7 yards in this case. The circumference is 7*PI. Which is approximately 21.98.
perimeter or circumference = 2*pi*7 m
Circumference of a circle = 2*pi*radius or pi*diameter 7*pi = 21.99114849 units Therefore the circumference ot the circle is 22 units correct to the nearest unit.
21.99113 approximately... * * * * * Accurate to 5 decimal places but WRONG by a factor of 2. Circumference = 2*pi*radius so radius = 7 cm => circumference = 43.98 cm.