Here's how to find the length of the fourth side: 1. Understand Perimeter: - The perimeter of a quadrilateral is the total length of all its sides added together. 2. Set up the Equation: - Let 'x' represent the length of the fourth side.- Perimeter = Side 1 + Side 2 + Side 3 + Side 4- 412.95 cm = 85.56 cm + 112.77 cm + 85.26 cm + x 3. Solve for x: - 412.95 cm = 283.59 cm + x- 412.95 cm - 283.59 cm = x- 129.36 cm = x Answer: The fourth side of the quadrilateral is 129.36 cm long.
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