two circle have diameter in the ratio 1:3 find the ratio of their circumference
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1
Answer:
This is true because you are taking the two diameters and multiplying them by the identical number. This means the proportions will remain the same. For example, if the diameters really were 1 and 3, the circumferences would be 3.14 (1*3.14 because pi = 3.14) and 9.42 (3*3.14). The ratio of these numbers is 1:3.
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3
Answer:
diameter of the first circle be x
radius of the first circle be x/2 unit
diameter of the second circle be 3x
radius of the second circle be 3x/2
∴ratio=2x/2 : 23x/2
=x:3:x
=1:3
hence, 1:3 is the required ratio.
hope, this will help you :D
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