Mathematics, 30.09.2019 08:30 cassiegagnier73

Which method is valid for proving that two circles are similar?

a- calculate the ratio of the diameter to the radius for each circle and show that they are equal.
b- calculate the ratio of degrees to the circumference for each circle and show that they are equal.
c- calculate the ratio of the área to the circumference for each circle and show that they are equal.
d- calculate the ratio of the diameter to the circumference for each and show that they are equal.

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Which method is valid for proving that two circles are similar?

a- calculate the ratio...