Which persian leader was responsible for constructing the royal road and for reorganizing the empire into provinces?

Darius I was the Persian leader responsible for constructing the Royal Road and for reorganizing the empire into provinces.

Darius the Great or Darius I was responsible for constructing the Royal Road and for reorganizing the empire into the provinces. He reconstructed the road in 5th Century BCE to make communication much more quicker through the very large empire. The Royal Road took 7 days to travel from one end of the empire to the other. Before the Royal Road was constructed, it took 90 days to travel.

1. To create his gardens without cutting any pieces, Wendell could make two triangles.

Please see the attached picture for both triangles and their measurements.

2. To find the area that Wendell's dog, Jordan has to run around in, you will find the area of the circle that is created from this space.

Please see the work attached for finding the area.

Wendall's dog will have approximately 452.16 square feet to roam.