Sixteen times pi. 16*3.1416
It quadruples. The area of a circle is Pi (about 3.14159) times the radius squared. So if you double the radius (say from 2m to 4m), you area will change from 4*Pi to 16*Pi (4 times what it was originally).
The formula where C=circumference, R=radius is C = 2 pi R Since C = 16 pi inches and 16 pi = 2 pi R we can solve for R and get R= 16 pi /2 pi = 8 Therefore the Radius is 8 inches.
The area of a circle is pi x radius2. You know the radius already since it's diameter/2 which is 8 inches. Your answer then is pi times 8 inches squared which is 64 times pi inches squared. pi is about 3.1415 so multiply that by 64 if you need to resolve the pi.
Circumference of the circle: 2*pi*8 = 16*pi m
If the circumference of a circle is 16 linear units times pi, then its diameter 16 linear units.
16 x 3.14 = 50.24
Sixteen times pi. 16*3.1416
16 times pi = approx 50.3 "
Oh, dude, you're hitting me with some math here! So, the circumference of a circle is calculated by multiplying the radius by 2π. With a radius of 8, that means the circumference would be 16π. But, like, if you want a numerical answer, it's around 50.27 units.
The surface area is equal to the (circumference of the base) times (the length). Circumference of the base = (2 pi) times (radius) = 16 pi Surface area = (16 pi) times 20 = 320 pi = 1,005.310 square units (rounded to 3 decimal places)
It will be diameter times pi or 3.14 or 3
c=pi*8 diameter = 8 radius = 4 area = pi * 16
The circumference of a circle is its diameter times pi, which is the same as twice the radius times pi.A = 2r (pi)In this instance, the circumference is 32(pi) inches(about 100.53 inches)
Circumference of a circle is the diameter times pi or 2pi times the radius. Given the diameter, circumference = 16 times pi. So, the circumference is 16pi or 50.265
Area of a cylinder equals base (pi times the square of the radius) times height. For purposes of demonstration I will be using an approximation of pi, 3.1415926, though in practive the pi key on your calculator will yield more precise results. A= (16[height])(3.1415926[pi])(6[radius])^2 A= (16)(3.1415926)(36) A= (576)(3.1415926) A~ 1809.557338
If 75% = 48*pi then 100% = 64*pi Radius = 8 inches Circumference = 16*pi inches