What two square numbers have a difference of 40?

Ineed no it anyone can see this

Line u passes through points (-52, -18) and (-29, 53). line v passes through points (90, 33) and (19, 56). are line u and line v parallel or perpendicular?

New york is the 27th largest state in the united states. what percent of the 50 states in the us are larger than new york