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circumfrience is pi times radius to the 2 i think
Because 2 times the radius is equal to the diameter of the circle
No, since Pi is an irrational number, 2(pi) would still be irrational.
Circumference is equal to 2 times pi (3.1416) times one half of the diameter (the radius). So, if the diameter is 2 cm, then the circumference would be the product of (2) times (3.1416) times (1), or 6.2832 cm. Circumference is equal to diameter times Pi. c = Pi * d diameter times pi
14pi = 43.982297150257105338477007365913
C= 2 times pi and C= pi times diameter C= 2 times pi and C= pi times diameter
pi^2
4 times pi times 4 divided by 2 is 78.9568352087
2 x pi x 2 = 4 x pi
Circumference = pi times the diameter, or pi times 2 times radius. Area = pi times (radius squared)
circumfrience is pi times radius to the 2 i think
It is 2*pi/3.
That would depend if you mean 2 times the radius times pi (2*pi*r) or the more likely scenario pi times radius squared (pi*r2). 2*pi*r is the formula of the circumference of a 2d circle. Pi*r2 is the formula of the area of a 2d circle.
NO!!!! C = 2 pi r C = pi d In words ; Circumference equals two times 'pi' times radius or , circumference equals 'pi' times diameter. NB The diameter is twice the radius. Also A = pi r^(2) In words, Area equals 'pi' times the radius squared. Read learn and comit to memory these two circle equations.
area: (pi) times radius2 circumference: (pi) times diameter OR 2 times (pi) times radius :)
2πr (2 times pi times the radius, or pi times the diameter)
Area of a circle: pi times radius squared Circumference of a circle: 2 times pi times radius or diameter times pi