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Earn +20 ptsQ: How does Pi relate to the circumference and area of circles?
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What is the ratio to any circles circumference to the diameter?
The ratio of the circumference of a circle to its diameter is Pi. (3.14159)
What is the circumference of a circle when the area is 36 pi?
To convert area into circumference, take the two formulas for circles--circumference and area: C=2pi*r A=pi*r^2 Now, isolate the common variable (r) in the second equation. r=sqrt(A/pi) Now you can substitute this in for "r" in the first equation to find circumference C=2pi*sqrt(A/pi) C=2pi*sqrt(36pi/pi) pi cancels out C=2pi*sqrt(36) C=2pi*6 C=12pi
What is the circles diameter if the circumference is 12.56?
diameter = 12.56/pi
What is the area of a circle with a circumference of 88cm?
Circumference = 2*pi*r where r is the radius so Radius = Circumference/(2*pi) and then Area = pi*r2 So, circumference = 88 cm implies that area = 616.25 cm2
What is the circumference and area when radius 9in and d 7.3?
Circumference of a circle = 2*pi*radius or pi*diameter Area of a circle = pi*radius2
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