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area= pie*(r^2)
= πr2
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∙ 13y ago
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What does the formula Pi r2 mean?
It is the formula used in finding the area of a circle which is pi times radius squared
What is pi used for in geometry?
Some of the many applications that pi is used in geometry are as follows:- Finding the area of a circle Finding the circumference of a circle Finding the volume of a sphere Finding the surface area of a sphere Finding the surface area and volume of a cylinder Finding the volume of a cone
What are ten facts about the math symbol pi?
Its the 16th letter of the Greek alphabet Its pi day on March 14th Its value to two decimal places is 3.14 Its worked out by dividing the circumference of any circle by its diameter Its true value is probably infinity Its used in finding the area of a circle Its used in finding the circumference of a circle Its used in finding the volume of a sphere Its used in finding the surface area of a sphere Its used in finding the volume of a cone Its used in finding the curved surface area of a cone
The formula used to find the area of a circle is?
Area = (pi) (R)2
What is the pie sign use for?
The sign pie is used for finding the area in a circle.
What is the formula used to find the area of a sector?
area of sector = (angle at centre*area of circle)/360
What is the formula used to find areaof a circle?
Area in square units = pi*radius2
What is the formula for finding the surface area using 3.14 for a rectangle?
The formula for finding the surface area of a rectangle is length x width. 3.14 is the value for pi and is used for circles, cylinders, and spheres and has nothing to do with rectangles.
What is the constant used in the formula to find the area of a circle?
You are thinking of pi.A = (pi)r^2
How do I use pie in geometry?
A pie chart is used to compare facts with each other visually in the form of a circle whereas pi is used for example in finding the area of a circle.
What does pi have to do with the area and circumference of a circle?
It is used in finding the circumference and area of a circle. Circumference = 2*pi*radius or pi*diameter measured in linear units Area = pi*radius2 measured in square units
What is the area of a circle with a radius of 9 inches?
The formula for the area of a circle is: A = π r²If you use 3.14 for π, the formula would be:A = 3.14 x 9²A = 3.14 x 81A = 254.34 square inchesThe answer will vary depending upon what is used for pi. An online calculator for the area of a circle gives an answer of 254.469.
