π REVIEW
1. Pi, or π , is the ratio of the ___________________ of a circle to the
_________________________ of a circle.
π = Circumference__
Diameter
2. The value of π = _____________.
NOTE: For hundreds of years, mathematicians have tried to find the exact value of π
. Recently electronic computers have worked out the ratio to thousands of decimal
places and it still didn't "come out even."
Sometimes the value used is 3.14; sometimes 3 1/7 or 22/7. For most ordinary
computations, 3.14 is accurate enough.
ANSWERS TO REVIEW
1. circumference
diameter
2. 3.14
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