Area of circle: 81*pi square units
If pi is taken as 3.14 then:- Circumference of the circle = pi*18 units Area of the circle = pi*92 square units
Area = Pi*r2 = Pi*92 = approximately 254.47cm2
Using 3.14 as Pi the area of circle is: 254.34
Using 3.14 as Pi the area of circle is: 254.34
circumference = pi*18 cm area = pi*92 square cm
Area of circle: 81*pi square feet
Using 3.14 as Pi the area of circle is: 254.34
Using 3.14 as Pi the area of circle is: 254.34
Area of circle with 18 inch diameter = pi*(18/2)2 = 81*pi sq inches Area of circle with 9.6 inch diameter = pi*(9.6/2)2 = 23.04*pi sq inches Difference = (81 - 23.04)*pi = 182.09 sq inches.
If pi is taken as 3.14 then:- Circumference of the circle = pi*18 units Area of the circle = pi*92 square units
Area = Pi*r2 = Pi*92 = approximately 254.47cm2
Area = pi * radius squaredA = pir2radius = diameter/2radius = 18/2 = 9Area = pi(9)2= 254 units=========
If you mean the diameter of a circle with area pi, then the diameter is 2. If you mean the diameter of a circle with circumference pi, then the diameter is 2. If you mean the diameter of a circle with diameter pi, then the diameter is pi. If you mean the diameter of a circle with radius pi, then the diameter is 2pi.
If Area of a circle = (2)(pi)(r), and diameter = 2r, then: diameter = 2r = Area of circle / pi, where pi = 3.14
Using 3.14 as Pi the area of circle is: 254.34
Using 3.14 as Pi the area of circle is: 254.34
circumference = pi*18 cm area = pi*92 square cm