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A bathtub contains 15 gallons of water. The circular drain opening of the tub has a radius of 21 mm. What is the approximate circle circumference of the drain opening?
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A bathtub contains 15 gallons of water. The circular drain opening of the tub has a radius of 21 mm. What is the approximate circle circumference of the drain opening?

A bathtub contains 15 gallons of water. The circular drain opening of the tub has-example-1
User TigerTiger
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7.0k points

1 Answer

5 votes

using C=2PIr

C = 2 * 3.14 * 21 = 131.88

round to 132 mm

Answer is B

User Abhinav Singi
by
6.6k points
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