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Mathematics 7 Online
OpenStudy (anonymous):

Which of the following statements is true? A. Diameter × pi = circumference B. Circumference × pi = diameter C. Diameter × circumference = pi D. Diameter + pi = circumference

OpenStudy (anonymous):

A is true because it is the formula to find the circumference

OpenStudy (phi):

This is a very important formula, and worth memorizing. \[ C= 2\pi r \] \[ C= \pi d\] where d is the diameter equal to twice the radius r

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