Explain how rigid transformations can be congruent.

Step-by-step explanation:

The three types of Rigid Transformations are Reflection, Rotation, and Translation.

Congruent means equal in all lengths, size and shape.

Rigid transformations are always congruent (or equal) because they never change their form, size or shape. They will always be the same shape and size no matter when it is moved.

They can be congruent when the shape is not different from the original, same size, same length/width, same form.

Dilation is NOT part of a rigid transformation because it widens or decreases its size/shape.

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.