Lesson 2: Area - Summary

   Summary

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Review what you have learned prior to completing the Lesson Assignment.

Key Ideas

  • Area is measured in square units (example: cm²).
  • When solving area problems, after looking at or drawing a diagram, always include the formula or formulas to be used in your solution.
  • Area can be estimated by taking the average of an overestimation and an underestimation.
  • Area formulas do not need to be memorized as they are provided on a formula sheet.
  • For composite figures, the areas of simple shapes can be added together.
  • All dimensions must be in the same unit before area can be calculated.



Key Terms

  • area
  • height of a shape
  • length
  • width
  • radius
  • diameter
  • base
  • parallelogram
  • trapezoid
  • composite figure
  • parallel

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