(pi) itself is an irrational number. The only multiples of it that can be rational are (pi) x (a rational number/pi) .
The only prime number that is a factor of both 20 and 32 is 2. Note: The only prime factor of 32 is 2. 32 = 2 x 2 x 2 x 2 x 2.
2 and 5
add a tenth of the larger number to the smaller number so the smaller number is actually the larger number or you could refare to 6 over 4 in pi over 56 = x square 2 pi But no-one understands that
24 (2 x 81 + 4 x 80)
This has an infinite number of answers, for example: pi / 1, (2 x pi) / 2, 1 / (1/pi), etc.This has an infinite number of answers, for example: pi / 1, (2 x pi) / 2, 1 / (1/pi), etc.This has an infinite number of answers, for example: pi / 1, (2 x pi) / 2, 1 / (1/pi), etc.This has an infinite number of answers, for example: pi / 1, (2 x pi) / 2, 1 / (1/pi), etc.
(12 x "pi" x 20) + 2(36 x "pi") which equals 314 x "pi" which equals about 985.96 when pi is 3.14
Circumference is 2 x pi x r = 3.14 x 2 x 20 = 3.14 x 40 ='125.6 cms
Area = (pi) x (radius)2 = (pi) x (10)2 = 314.16 (rounded)
The circumference is pi x diameter, or 2 x pi x radius. In this case, 2 x pi x 10, approximately 20 x 3.14 = 60.28 meters.
Circ = 2 x pi x r = 20 so pi x r = 10 so r = 10/pi = 3.18, taking pi as 22/7
circ = 2 x Pi x radius pi x radius = 10 radius = 10/pi = 3.2 approx
A square of side 5 would have an area of 25 sqft, but a circle of circumference 20 ft would have a bigger area: circumference = 2 x pi x r = 20 so r = 10/pi. Area = pi x r x r = pi x 10/pi x 10/pi which = 100 pi /pi x pi ie 100/pi which is about 31.8 sq ft.
Divide the circumference by (2 x pi).
The volume of a cylinder equals the area of the base times the height, which equals pi x radius squared x height. Inserting the numbers, V = pi x (2 m.) squared x 5 m. = pi x 4 m. squared x 5 m. = 20 x pi meters cubed or 20 x pi cubic meters.
The circumference is 42.83 becausecircumference = 2 x pi x r2 x 2.1415927 x 10 = 42.83Improved answer:Circumference of a circle = 2*pi*radius or pi*diameterCircumference = 20*pi = 62.83185307 units or 63 to the nearest unit.
Just divide the circumference by (2 x pi). Pi is about 3.1416.