The diameter of a circle is 6 centimeters. Calculate the circumference of the circle. (Use LaTeX: \pi=3.14π = 3.14 )

18.84

Step-by-step explanation:

to find the circumfrence of a circle just take the diamater of the circle and multiply it by pi :))

i'm pretty sure it's 477,585,296, but perhaps my math is incorrect.

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.