What are the defining features of a rhombus?

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A rhombus is defined as a parallelogram characterized by having equal side lengths and oblique angles. The term originates from the mid-16th century, derived from the Latin word and Greek "rhombos." Key features include its symmetrical properties and the fact that opposite angles are equal. Rhombuses are often used in various geometric applications due to their unique properties. Understanding these defining features is essential for studying geometry.
JamesBell
What is a rhombus?
 
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What is a rhombus?

rhombus

noun (pl. rhombuses or rhombi )
Geometry a parallelogram with oblique angles and equal sides.

ORIGIN mid 16th cent.: via Latin from Greek rhombos.
 
Here is a little puzzle from the book 100 Geometric Games by Pierre Berloquin. The side of a small square is one meter long and the side of a larger square one and a half meters long. One vertex of the large square is at the center of the small square. The side of the large square cuts two sides of the small square into one- third parts and two-thirds parts. What is the area where the squares overlap?

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