PLA HELP! ASAP! A contractor is building a set of stairs out of concrete. Each stair is exactly the same length, width, and height.
And don’t answer if you don’t know it!

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )