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What are 3 uses of pi?
Finding the area of a circle: pi*radius2 Finding the circumference of a circle: 2*pi*radius or diameter*pi Finding the surface area of a sphere: 4*pi*radius2
What formulas use Pi in the equation?
a formula that uses pi is the circumference and area of a circle and every polyhedron that has a circle
What is the formula for area using pi?
It depends on the shape you need the area of, the most common one is for a circle. That is Area=Diameter x Pi
Square footage for round shape?
or where is the area, and is the radius. (Pi) = 3.14159 should be close enought for most calculations. A=Pi * r * r where is the area, and is the radius. (Pi) = 3.14159 should be close enought for most calculations.
How and when do you use pi in school?
Some of its uses and applications are as follows:- Circumference of a circle: 2*pi*radius or diameter*pi Area of a circle: pi*radius2 Volume of a sphere: 4/3*pi*radius3 Surface area of a sphere: 4*pi*radius2 Volume of a cone: 1/3*pi*radius2*height Curved surface area of a cone: pi*radius*slant length Volume of a cylinder: pi*radius2*height Entire surface area of a cylinder: (2*pi*radius2)+(diameter*pi*height) Pi is the value of a circle's circumference divided by its diameter Pi is the 16th letter of the Greek alpabet
How do you get from diameter to area of a circle?
The area of a circle is its diameter times the value of PI. In most cases you can safely use the 3.14159 for the value of PI
What is the area of a circle with a radius 2.1 centimeters?
the area of a circle is represented by the following equation; A=pi*R2 where A is area, pi is the number pi (3.1415926.......for most high school maths, 3.14 is suitable) and R is the radius. So, square your radius, and multiply it by pi.
What you the relationship of pi and area?
The area of a circle is pi times the square of the radius. Pi has no relationship with the area of a polygon.
How do you calculate circumference and area of pi?
Pi is the number of times the diameter of a circle will fit into the circumference. Pi is not a circle, and does not have a circumference or area. To calculate a circumference USING pi, the circumference is diameter * pi. To find the area using pi, area = pi * radius * radius
How do you calculate pipe area for pipe insulation jobs?
THE DIAMETER OF THE OUTSIDE OF THE PIPE TIMES PI TIMES THE LENGTH OF THE PIPE or D x Pi x L = A
What is the formula for finding the surface area using 3.14?
Assuming that 3.14 is pi, then most likely you're looking for the surface area of a circle, which is pi x r2.
What is the area of a circle you the circumference is 12 pi ft?
Circumference = 2 * pi * radius 12 pi ft = 2 pi radius radius of the circle = 6 ft Area = pi *radius2 Area = pi (6)2 Area = 36 pi ft2
