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Q: How big is pi x pi?
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How big would a circle be if its circumference was 165ft?

Divide that by pi to get the diameter, or by (2 x pi) to get the radius.


Radius of 5m what is the circumference?

If you mean a circle: the circumference is equal to diameter x pi, or 2 x pi x radius.If you mean a circle: the circumference is equal to diameter x pi, or 2 x pi x radius.If you mean a circle: the circumference is equal to diameter x pi, or 2 x pi x radius.If you mean a circle: the circumference is equal to diameter x pi, or 2 x pi x radius.


What is the derivative of sin pi x?

pi cos(pi x)


What is the derivative of cos pi x plus sin pi y all to the 8th power equals 44?

(cos(pi x) + sin(pi y) )^8 = 44 differentiate both sides with respect to x 8 ( cos(pi x) + sin (pi y ) )^7 d/dx ( cos(pi x) + sin (pi y) = 0 8 ( cos(pi x) + sin (pi y ) )^7 (-sin (pi x) pi + cos (pi y) pi dy/dx ) = 0 8 ( cos(pi x) + sin (pi y ) )^7 (pi cos(pi y) dy/dx - pi sin (pi x) ) = 0 cos(pi y) dy/dx - pi sin(pi x) = 0 cos(pi y) dy/dx = sin(pi x) dy/dx = sin (pi x) / cos(pi y)


How do you work out the circumfrance of a circle using the pi button?

-- enter the diameter of the circle-- hit the big ' X ' for "times"-- enter (pi) with the pi button-- touch " = " ('equals')The circumference is displayed.


What is the circumference of a twenty seven foot diameter circle?

I'm not sure, but that would make one big pi. <groan> Diameter x pi = circumference 27 ft x 3.141 = ___


What is the antiderivative of x raised to the pi power?

x(pi+1)/(pi+1)


The radius of a circle is x plus 4 what is the circumference?

Circumference = (2) x (pi) x (Radius)= (2 pi) times (X + 4)= same as (2 pi X) + (8 pi)= same as [ pi (2X + 8) ]


How big is 1 centimeter in diameter?

The area of a circle 1cm in diameter is determined by the formula Pi x Radius x Radius. Radius is 5mm Pi is 3.14159 (roughly) So the area is 3.14159 x 5 x 5 Which is 78.5398163397448 square mm.


What's the formula for the circumference of a circle?

2 x pi x radius or pi x diameter where pi = 3.14159265


How do you multiply two times pi times two?

2 x pi x 2 = 4 x pi


How do you find the circumference of a circle if you have the area and nothing else?

Area = (pi) x (Radius)2Radius = sqrt(area/pi)Circumference = (2 pi) x (Radius) = (2 pi) x sqrt(area/pi)Circumference = 2 x sqrt(pi x area)