The volume of a cylinder is 2257 cm^3 and its height is 9 cm. What is the length of the cylinder's radius?
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_cm

as we know pi r square h is equal to volume of cylinder so first you need to equate the given number with pi r square h and while solving the height is already given then putting the value of h you can get your radius of cylinder

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.