SOLUTION: What is the ratio of a 5.375 inch circle (diameter) to a 6.125 inch circle (diameter). What is the formula? W.L.Sparks
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Question 766045: What is the ratio of a 5.375 inch circle (diameter) to a 6.125 inch circle (diameter). What is the formula? W.L.Sparks
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
If circle 
has a radius 
, then the area of that circle is ^2})
.
Likewise the area of circle 
with radius 
has area ^2})
.
Then the ratio of the areas of the first circle to the second is ^2}}{\pi{(r_2)^2}}\ =\ \frac{(r_1)^2}{(r_2)^2})
.
Recalling that the diameter is twice the radius, substitute your numbers and do the arithmetic.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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