Draw a square with side length 7 cm. Predict the perimeter and the length of the diagonal of the square. Measure the perimeter and the length of the diagonal of the square. Describe how close the predictions and measurements are.

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step-by-step explanation:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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the answer to this would be 5x^3-6x^2-24 over 3x^2

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