A square has a side length of 9 cm . If you draw diagonal segment through the square from corner to corner , how long would the segment be ?

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

Through: (-3,-3) parallel to y= 7/3x+3

Math it's appreciated. (picture provided)