"Quadrilaterals" Natural Recordings by Native Speakers
A polygon with four sides.
In geometry, a quadrilateral is a two-dimensional shape with four sides and four angles. The sum of the interior angles of a quadrilateral is always 360 degrees.
Types of quadrilaterals include:
Square
Rectangle
Triangle (can be considered a quadrilateral)
Rhombus
Trapezoid (or trapezium)
Parallelogram
Quadrilaterals can be classified based on their properties, such as whether they have equal sides, equal angles, or diagonals that bisect each other.
Having or relating to four generations within one's experience or family.<br><br>Example: "As a quadrigenarious leader, she had the experience of guiding four different generations in the company."
A quadrimester is a period of four months, used in some academic systems to divide the school year, typically twelve months in length, into four parts.