a rectangle

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  What is a rectangle?-Properties of a rectangle
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  Area of a Rectangle - Math for Kids
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  Calculating the Perimeter of Rectangles (Sample Questions)
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  Rectangle
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  How to Draw a Rectangle: 5 Steps (with Pictures) - wikiHow
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  Area of a Rectangle Calculator 📐
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  Perimeter of Rectangle - Definition, Formula & Examples
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  How to draw a rectangle given its sides
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  Area of rectangles review (article), Area
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  Illustrative Mathematics
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  Rectangle - Definition, Steps, Examples & Questions
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  Square vs Rectangle - Differences & Similarities
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  Perimeter and Area
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  rectangle ~ A Maths Dictionary for Kids Quick Reference by Jenny Eather
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  What is a rectangle base? - Quora
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  Perimeter of a Rectangle
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  What is a RECTANGLE, anyway? Part 3: Is a Rectangle a Parallelogram? Is a Parallelogram a Rectangle?
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  Dimensions Of A Rectangle Calculator
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  Rectangle Images – Browse 1,434,971 Stock Photos, Vectors, and Video
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  RECTANGLE definition in the Cambridge English Dictionary
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  Area of a Rectangle (Formula + Example)
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  Lesson Explainer: Areas of Rectangles and Squares
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  IS A SQUARE A RECTANGLE? YES OR NO?
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  Golden Rectangle Calculator