In rectangle RSBF, SF = 2x+15 and RB = 5x-12. What is the length of a diagonal? В A. Determine the property about rectangles that should be used in this problem. B. Set up an equation and solve for x. R C. Substitute for x to find the length of the diagonal. D. Considering what you have learned about rhombi, rectangles and squares, what are some properties that can you conclude about the diagonals of a square?

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