Parallelogram Area

A=bhA = b \cdot h

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Learning zone

A parallelogram is a rectangle that has been pushed sideways — sheared — and shearing never changes area: slice a triangle off one end and it fits exactly onto the other. So the area is still base times height, provided h is the perpendicular distance between the two parallel sides, not the length of the slanted side. Using the slant side is the single most common error with this formula.

Parallelogram Area
A=bhA = b \cdot h
Where
  • AA= Area
  • bb= Base
  • hh= Height
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