👉 In geometry, a quadrilateral is defined as a four-sided polygon that has four sides and two pairs of parallel sides. A quadrilateral with four sides and four angles (three right angles) is called a rectangle. The word "quadrisect" in English is derived from the Latin word "quadri," meaning four, and "sectus," which means cut or divide. So, if you're referring to the concept of dividing a quadrilateral into four parts with two parallel sides