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OpenStudy (chancemorris123):
The ratio of the radii of two circles is 4:5. What is the ratio of the circumferences of the two circles? 16:25 mc016-1.jpg:5 4mc016-2.jpg:5 4:5
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OpenStudy (chancemorris123):
OpenStudy (campbell_st):
the circumference of a circle is a linear measurement and given all circles are similar, the ratio of the radii is the same as the ratio of the circumferences test it by finding the circumference of 2 circles, 1 with radius 4cm and 1 with radius 5 cm
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