If a circle has the area A and radius r, then
A = pi * r^2
To calculate this you will need the diameter of the circle. The formula is: diameter/2*pi If you don't know the diameter you can also use the area of the circle: Sqrt(Area/pi) = radius
50.2656 square inches The formula to find the area of a circle is ∏r2. Where ∏ is the mathematical constant and r is the radius of the circle. So 3.14 x 42. = 50.27 square cm or yds, (whatever the diameter was in).
Area of a circle = pi*radius2
In order to convert the area of a circle to the circumference of the circle, divide by the radius and multiply by two. The formula for the circumference of a circle is pi times the diameter.
semi means half A semi-circle is half a circle The formula for the area of a circle is A = (Π * r^2) Area of semi circle = (Π * r^2) ÷ 2
To calculate this you will need the diameter of the circle. The formula is: diameter/2*pi If you don't know the diameter you can also use the area of the circle: Sqrt(Area/pi) = radius
The formula to get the area of a circle ("R" being the radius of the circle). Radius means the distance from the center of the circle to the edge.It means pi times radius squared which is the formula for finding the area of a circle.
50.2656 square inches The formula to find the area of a circle is ∏r2. Where ∏ is the mathematical constant and r is the radius of the circle. So 3.14 x 42. = 50.27 square cm or yds, (whatever the diameter was in).
the formula for the area of a circle is 3.14 x radius squared
The formula to find the area of a circle is: A = pi * r2
The formula used to calculate the area of a circle is A r2, where A represents the area and r is the radius of the circle.
The formula for calculating the area of a circle is A r2, where A represents the area and r represents the radius of the circle.
The expression (3.14r^2) represents the formula for the area of a circle, where (r) is the radius of the circle. The value (3.14) is an approximation of the mathematical constant (\pi) (pi), which is the ratio of a circle's circumference to its diameter. Thus, the formula can also be expressed as (A = \pi r^2).
The area of a circle can be found with the formula (pi)r^2
Area formula for circle= --,,- r 2
The expression ( \pi r^2 ) represents the formula for the area of a circle, where ( \pi ) (approximately 3.14) is a mathematical constant, and ( r ) is the radius of the circle. It is derived from the relationship between the radius and the area enclosed by the circle. The formula indicates that the area increases with the square of the radius, highlighting how larger circles contain significantly more space compared to smaller ones.
The formula to find the area of a circle is pi x the radius squared.