# What is bigger?

Which ball has a larger volume: a football with a circumference of 66 cm or a volleyball with a diameter of 20 cm?

Result

x = (Correct answer is: F)

#### Solution:

$o_{1}=66 \ \text{cm} \ \\ D_{2}=20 \ \text{cm} \ \\ \ \\ o=\pi D \ \\ \ \\ D_{1}=o_{1}/\pi=66/3.1416 \doteq 21.0085 \ \text{cm} \ \\ \ \\ D_{2}

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