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Calculating perimeter and area of 2D shapes

Geometry and measures • Mensuration and calculation

Key concepts

What you'll likely be quizzed about

  • Perimeter is the total distance around a 2D shape.
  • For basic shapes like rectangles, the formula is P = 2(length + width).
  • In the case of polygons, add the lengths of all sides together.
  • Understanding how to calculate perimeter is vital for tasks involving fencing or boundary measurements.

Flashcards

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How can perimeter knowledge be applied in real life?

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Perimeter calculations are used in construction, fencing, and land measurement.

Key notes

Important points to keep in mind

Perimeter is the total distance around a shape.

Area measures the space inside a shape.

Use specific formulas for different shapes.

Check units are consistent before calculations.

Always simplify final answers.

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