The ratio of the radii of two wheels is 3:4. What is the ratio of their circumference?
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Let the radii of two wheels be 3x and 4x
circumference of one wheel with radius 3x = 2πr = 2π × 3x
circumference of another wheel with radius 4x = 2πr = 2π × 4x
the ratio between their circumference
= 2π × 3x/2π × 4x = 3/4 = 3:4
Ans. 3:4
circumference of one wheel with radius 3x = 2πr = 2π × 3x
circumference of another wheel with radius 4x = 2πr = 2π × 4x
the ratio between their circumference
= 2π × 3x/2π × 4x = 3/4 = 3:4
Ans. 3:4
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