Math K-Plus

Area Of A Rectangle, Rectangle Area Calculator


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How To Find The Area Of A Rectangle?


Let's look at the geometric characteristics of a rectangle. But first, please review the definition of Area Of Two-Dimensional Shapes, Angle, and Right Angle.
  • A rectangle has one unique feature, there are four sides; two sides have the same length - let's call these two sides the (W).
  • The other two sides have the same length but their length are different from the first lengths - let's call these two sides (L).
  • If all sides are equal we have a square but if they are different, than it is a rectangle.
  • Another unique feature of a rectangle, two sides are parallel. Also the other two side are rectangle and at right-angles to the first set of sides.
  • Rectangle, all side are Perpendicular at the endpoint of each Line Segment.
  • Special note, both the (L) and (W) length of a rectangle must be greater than zero.

Area Of A Rectangle
Area = L × W



Rectangle Object



Calculator To Find The Area Of A Rectangle
Field Name User Input
Length Of L
You can enter up to 6 digits
Length Of W
You can enter up to 6 digits
Your Answer
You can enter up to 10 digits
Correct Answer

Compute Button