Etymology
The word "parallelogram" is derived from the Greek words "parallelos" (parallel) and "gramma" (line).
Meaning
A parallelogram is a two-dimensional geometric figure with four sides and four angles. The opposite sides of a parallelogram are parallel and equal in length.
Origin
The concept of the parallelogram was first introduced by the ancient Greek mathematician Euclid (c. 300 BC) in his work "Elements". Euclid defined a parallelogram as a "four-sided figure having its opposite sides parallel."
Parallelograms are a special type of quadrilateral, which is a geometric figure with four sides. Other types of quadrilaterals include squares, rectangles, rhombuses, and trapezoids.
Parallelograms are commonly used in architecture, engineering, and design. They are often used to create patterns and shapes that are both aesthetically pleasing and structurally sound.
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