Circumference of circle: 2*pi*4.9 = 30.788 rounded to 3 decimal places
Circumference of 14 inch radius circle: 2*pi*14 = 28*pi inches or about 87.96 inches rounded to two decimal places
It is already at 2 decimal places
pi*r2 = 144 m2 => radius = 6.770275003 m circumference = 2*pi*6.770275003 = 42.539 m (rounded to 3 decimal places)
Use the formulae for the area and circumference of a circle, replacing the symbol for the radius or the diameter with the known radius or diameter. As a reminder, the radius is 1/2 the diameter.Circumference = pi x diameter area = pi x radius squared
3.14
Rounded to 2 decimal places pi = 3.14 However pi is an irrational number and never terminates (goes on and on forever). The first few decimal places are: 3.14159265358979323846264338327950288419716939937510...
The radius of this circle is 50 cm. The area of a circle is (pi) times (radius squared) = (pi) times 2,500 cm2 = 7,853.98 cm2 (rounded to 2 decimal places). Also, 10,000 cm2 = 1 m2, so the area is equivalent to 0.7854 m2 (rounded to 4 decimal places). Also, 1 m2 = 10.76 ft2 (rounded to 2 decimal places), so the area is equivalent to 8.454 ft2 (rounded to 3 decimal places). Also, 1 m2 = 1,550.00 in2 (rounded to 2 decimal places), so the area is equivalent to 1,217.37 in2 (rounded to 2 decimal places).
452144 pi (exactly)452.39 (rounded to 2 decimal places)
radius = 600/(2*pi) = 95.463 mm rounded to 3 decimal places
Circumference: 2*pi*1.4 = 8.796 rounded to three decimal places
Radius: 110/2*pi = 17.51 rounded to two decimal places
It is: 2*pi*8 = 50.265 feet rounded to three decimal places
It is: 2*pi*8 = 50.265 feet rounded to three decimal places
Using 3.14 as Pi the area of circle is: 0
0.625 rounded of to 2 decimal places = 0.63
It is 0.60 rounded to two decimal places