ΣCalculator Solver
Geometry & trigonometry

Rectangle, Square & Trapezoid Area Calculator

Area, perimeter and diagonal of a rectangle, plus the area of a trapezoid with the same height.

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How to use it

  1. Enter your values in the boxes above. Example values are filled in so you can see how it works.
  2. The answer and every step update as you type. Press Solve or Enter at any time.
  3. Use Copy steps to paste the full working into your notes or homework.