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  1. How to Find Area and Perimeter of a Shape - wikiHow

  2. Area and Perimeter (Definition, Formulas and Examples) - BYJU'S

  3. Perimeter Calculator

  4. Math Formulas for Basic Shapes and 3D Figures - ThoughtCo

  5. How to Find Area and Perimeter? (Explained w/ 7+ Examples!)

  6. Area and Perimeter of Shapes | Formula and Examples

  7. How to Find the Area and Perimeter of a Rectangle: 8 Steps - wikiHow

  8. Perimeter & Area Calculator - UpStudy (Fomerly CameraMath)

  9. Area and Perimeter – Definition with Examples - SplashLearn

  10. How to find Area and Perimeter? - CCSS Math Answers