pi.(radius of the circle)square.
piR2
Circle area = pi*r 2 r= D/2 Circle area = pi*(D/2) 2 = (pi/4)*D 2
The circumference is 4pi
A = 64pi
The area of a full circle is pi x R squared where R = RADIUS The area of a semi circle is half of that, or pi x R squared/2
When finding the area of a circle it is pi times r^2 therefor square your radius and put put after it.
the area of a circle is 2 X pi radius
If the diameter of a circle is 40 m then the area (in terms of Pi) is: about 400pi m2
piR2
To express a quantity in terms of pi, you need to relate it to a circular measurement, such as the circumference or area of a circle. For example, if you have the circumference of a circle, you can use the formula ( C = 2\pi r ), where ( r ) is the radius, to express the circumference as a multiple of pi. Similarly, for the area, use ( A = \pi r^2 ) to express the area in terms of pi. Simply factor out pi from the equation to achieve the desired expression.
Using 3.14 as Pi the area of circle is: 34.1946
Circle area = pi*r 2 r= D/2 Circle area = pi*(D/2) 2 = (pi/4)*D 2
The circumference is 4pi
A = 64pi
12inch x Pi
Circumference in terms of pi = 2pi yards Area in terms of pi = pi square yards
Circumference in terms of PI = 17 PI Circumference with 3.14 = 53.58 Area in terms of PI is 72.25 Area with 3.14 is 226.86500