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Hermina cut a 10'' by 20'' piece of cardboard down the diagonal. A rectangle is 10 inches wide and 20 inches long. A diagonal cut is shown with a line labeled c. The cut divides the rectangle in half
Hermina cut a 10'' by 20'' piece of cardboard down the diagonal. A rectangle is 10 inches wide and 20 inches long. A diagonal cut is shown with a line labeled c. The cut divides the rectangle in half and creates two right triangles. The hypotenuse of each right triangle is the line labeled c. What is the length c of the cut, in inches?