Topic: Area And Circumference Of A Circle
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Answers to Common Questions
How to Calculate the Area & Circumference of a Circle
The circumference and area of a circle are related to its radius or diameter. If you know the circle's radius or diameter, you can calculate both circumference and area using the universal constant pi (a letter in the Greek alphabet), which... Read More »
Source: http://www.ehow.com/how_7274267_calculate-area-circumference-circ...
What is the circumference of a circle with an area of 81?
In every circle . . . Area = (pi) x (radius) 2 Diameter = 2 x radius Circumference = (pi) x diameter In this circle, Area = (pi) R 2 = 81 R 2 = 81 / pi R = sqrt( 81 / pi ) Diameter = 2 x sqrt( 81 / pi ) Circumference = (pi) x 2 x sqrt( 81 /... Read More »
Source: http://wiki.answers.com/Q/What_is_the_circumference_of_a_circle_w...
Who invented area and circumference of a circle?
Actually, Eratosthenes of Cyrene (276? - 195? B.C.) was the first to calculate the Earth's circumference accurately. He is supposed to be the inventor. Note: There are comments associated with this question. See the discussion page to add t... Read More »
Source: http://wiki.answers.com/Q/Who_invented_area_and_circumference_of_...
More Common Questions
Answers to Other Common Questions
First find the radius and then the area will be pi*radius2 circumference = 2*pi*radius = 100 units radius = 100 divided by 2*pi = 15.91549431 units area = pi*15.915494312 = 795.7747155 square units So the area of the circle is 796 square un...
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Source: http://wiki.answers.com/Q/What_is_the_area_of_a_circle_with_a_cir...
The area of circle with a circumference of 20 is: 31.83 units squared.
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Source: http://wiki.answers.com/Q/What_is_the_area_of_circle_with_a_circu...
25.78310078 or about 26 square units
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The circumference of a circle can be calculated from its diameter using the formula: C = pi * diameter or C = 3.14159 * 2 * radius. The area of a circle equals pi * r^2.
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Source: http://www.chacha.com/question/what-is-the-area-and-circumference...
How to find the circumference of a circle<br/><br/>First here are some geometry basics:<br/>Circumference is the distance all the way around a circle.<br/>Diameter is the distance straight across the middle.<br/>Radius is the distance from the center to the outside...
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Source: http://answers.ask.com/Science/Mathematics/how_to_find_the_circum...
The circumference of a circle is easily found by multiplying Pi X 2 X R, where Pi can be given as 3.14 and R is the radius. Another formula you can use to find the circumference when you are given the diameter (D ) is Pi X D. You can find m...
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Source: http://answers.ask.com/Science/Mathematics/what_is_the_circumfere...
The circumference is 3.544 meters.
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Source: http://wiki.answers.com/Q/What_is_the_circumference_of_a_circle_w...
