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Earn +20 ptsQ: Why is pi used in every circle formula?
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What is the formual for pi?
the formula for pi is the ratio of the circumference of a circle to the diameter of the circle
What is the formula used to find areaof a circle?
Area in square units = pi*radius2
How can kids remember the formula for circle area and the formula for circle circumference?
Any formula involving a circle will have "pi" in it. Area = pi* radius * radius Circumference = pi * diameter = pi * radius * 2 ( the diameter is just 2 times the radius) Quick way: A = pi r squared C = pi D
Formula to find area of circle?
The area of a circle can be found with the formula (pi)r^2
What s the formula for the area of a circle?
The formula for the area of a circle is πr2, or pi x radius^2 The radius of a circle is the diameter divided by two, and pi is approx. 3.1415926535
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