Giving brainlist to whoever answers

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

The area of square garden is 300m squared. how long is the diagonal?

The stairs leading from the ground to the entrance of a plane forms a right triangle with the ground. if the distance of the stairs measures 22 feet and the ground distance measures 11 feet, how high is the entrance to the plane from the ground? which diagram represents this scenario? / 22ft © 22ft 11 ft 11 ft 22 it