What is the longest length: one yard, one kilometer, one meter, or one inch?(1 point) Responses one inch one inch one kilometer one kilometer one yard one yard one meter

The longest length is one kilometer.

The longest length among the options given is one kilometer.

To determine the longest length among one yard, one kilometer, one meter, and one inch, you need to compare the sizes of each unit. Here is a breakdown of each unit and its conversion factor:

1 yard = 3 feet or approximately 0.9144 meters
1 kilometer = 1000 meters
1 meter = 100 centimeters or approximately 39.37 inches
1 inch = 2.54 centimeters

Now, we can compare the lengths:

- One inch is the smallest length among the given options.
- One kilometer is the largest length, as it contains 1000 meters, which is significantly longer than one yard or one meter.

Therefore, the longest length among one yard, one kilometer, one meter, and one inch is one kilometer.