Elise walks diagonally from one corner of a square plaza to another. Each side of the plaza is 505050 meters.

What is the diagonal distance across the plaza?
Round your answer to the nearest tenth of a meter.

Using Pythagoras' theorem, we can find the diagonal distance across the plaza (d) as follows:

d² = 50² + 50²

d² = 5000

d ≈ 70.7 meters (rounded to the nearest tenth)

Therefore, Elise walked approximately 70.7 meters diagonally across the plaza.