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Calculator Use. Use this calculator if you know 2 values for the rectangle, including 1 side length, along with area, perimeter or diagonals and you can calculate the other 3 rectangle variables.

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Average satisfaction rating 4.8/5

Our average satisfaction rating is 4.8 out of 5.

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Clarify math questions

To ensure you are clarifying the math question correctly, re-read the question and make sure you understand what is being asked. If you are still unsure, ask a friend or teacher for help.

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Decide mathematic problems

With Decide math, you can take the guesswork out of math and get the answers you need quickly and easily.

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Provide multiple ways

You can provide multiple ways to do something by listing them out, providing a step-by-step guide, or giving a few options to choose from.

If you need to find the area and perimeter of a rectangle, this calculator is the handy tool you will need. By simply inputting the length and width, this calculator will almost instantly find the

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