What is the similarity ratio for two circles with areas 2π m2 and 200π m2?

 The required similarity ratio is 1 : 10.

Step-by-step explanation:  We are given to find the similarity ratio for the two circle with areas as follows:

Finding a similarity ratio for two circles is equivalent to finding the ratios of their radii.

Let, and be the radii of the two circles with areas and respectively.

So, we have

Thus, the required similarity ratio is 1 : 10.

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.