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BeauRemember the equation and commit to memory ;-
C = pi * d or
C = 2pir And Area
A = pi*r^2
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What formula do you use if you know the diameter of a circle and want to find the circumference?
circumference of a circle = pi * diameter.
If you know the circumference of a circle which steps can you follow to find its diameter?
Diameter = circumference/pi
What do you know about all the diameters of a circle?
The diameter of a circle is directly proportionate to the circumference. You can find the diameter of a circle by dividing the circumference by the value of Pi (3.14) OR you can find the circumference by multiplying Pi by the diameter. it is a line that halves a circle
How do you calculate the diameter of a circle?
If you know the circumference, the ration of the diameter to the circumference is π, so diameter = circumference/π If you have the radius, diameter = 2 x radius
HOW TO FIND circumference?
The circumference of a circle can be found by multiplying pi ( π = 3.14159 ) by the diameter of the circle. If you know the radius, the diameter is twice as large.
