Q: How does the area of a circle derived?

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The area of a circle is derived from Pi x r2 where Pi = 3.14 and r = the radius, therefore a circle with an area of 662.89 has a radius of 14.5

(3.1416) x (r x r)

Super question: Best answer-- http://www.ugrad.math.ubc.ca/coursedoc/math101/notes/integration/archimedes.html

Yes, area is a derived quantity.

Area of a circle = pi*radius2

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The area of a circle is derived from Pi x r2 where Pi = 3.14 and r = the radius, therefore a circle with an area of 662.89 has a radius of 14.5

(3.1416) x (r x r)

Super question: Best answer-- http://www.ugrad.math.ubc.ca/coursedoc/math101/notes/integration/archimedes.html

Yes, area is a derived quantity.

circle

Area of a circle = pi*radius2

Area of a circle = Pi * radius2

Area of a circle = pi*radius2

Area of a circle is calculated by A=2*p*r where A represents the circle's area and r is the radius of the circle.

The area of a circle is the amount of space inside the circle. The area of a circle is calculated by multiplying pi(3.14159) by the radius squared.

Using 3.14 as Pi the area of circle is: 0

To find the area of the circle pi*radius*squared and subtract the area of the figure inside