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The term "pi squared of circle 4" is not a standard mathematical phrase, but if you're referring to the area of a circle with a radius of 4, you would use the formula (A = \pi r^2). For a circle with a radius of 4, the area would be (A = \pi \times 4^2 = 16\pi). If you meant something else by "pi squared," please provide more context for clarification.

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4w ago

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The formula for circumference of a cirle is?

pi*radius squared


How do you find the area of a cirle with the circumference?

Area = circumference squared... You do circumference divided by 4,... and then divide that by Pi.


What is the area of a circle with radius 2?

To find the area of a cirle you multiple pi (3.14) by the radius squared, so you would have to find 3.14 times 4, which is 15.7.


What is the diameter of the circle that has a circumference equal to its area?

The diameter is 4 and its radius is 2 because 2+2 = 4 and 2 squared = 4 Circumference of the circle: pi*4 is the same as pi*2 squared Area of the circle: pi*2 squared


What is the formula for the circumference of the cirle?

circumference of a circle = 2*pi*radius or pi*diameter


What is the circunference of a cirle with 12 diameter?

circumference = pi*diameter


What is the diameter of a circle is the area is 400pie?

area = pi x diameter squared/4 = 400 pi diameter squared = 4 x 400 x pi/pi = 1600 diameter = sqrt 1600 = 40


What is 4 times pi times the radius squared is the surface area of a sphere?

That is correct because the surface area of a sphere is: 4*pi*radius squared


What is the surface area of a cylinder with 4m in diameter and 6m in height?

The surface area of a (closed) cylinder equals the surface area of both bases (the top and bottom), i.e. pi x radius squared (first base) + pi x radius squared (second base), plus the lateral surface area (the surface area of the curved side), i.e. circumference (pi x diameter) x height. Inserting the numbers: SA = pi x (2 m.) squared + pi x (2 m.) squared + pi x 4 m. x 6 m. = pi x 4 m. squared + pi x 4 m. squared + pi x 24 m. squared = 8 x pi m. squared + 24 x pi m. squared = 32 x pi meters squared.


What is the area of a 4' circle?

It is: pi*radius squared


Why is 4 pi r squared the surface area?

Because 4*pi*radius2 is surface area of a sphere


How does pi relate to the circumference and diameter of a cirle?

The cicumference of any circle divided by its diameter is aways equal to pi.