A quadrilateral is a polygon with four sides, four vertices, and four angles. The sum of the interior angles in a quadrilateral is always 360 degrees. Common types of quadrilaterals include squares, rectangles, trapezoids, and parallelograms, each having specific properties and characteristics. Quadrilaterals can be classified based on the lengths of their sides and the measures of their angles.
It is 4 as in a square and a rhombus
12*6 = 72 square units
Some things that begin with the letter q are: quadra, quadragene, quadragenarian, quadrat, quadrangle, quadrant, quadrella, quadricentennial, quadricep, quadricorn, quadricycle, quadrifid, quadrilaterla, quadrille, quadrillion, quadriplegic, quadroon, quadruped, quadruplane, quadruplet, quadruplex, quadruply, quadrupole, quaff, quaffer, quag, quagga, quagmire, quahog, quaigh, quail, quaintise, quaintness, quair, quake, quaker, quale, qualification, quality, qualm, quame, quandary, quannet, quantity, quantometer, quantum, quarantine, quark, quarl, quarrel, quarry, quart, quartane, quarter, quarterback, quartet, quartile, quartz, quasar, queen, quenelle, querent, query, quest, question, questioner, quetzal, queue, quiche, quill, quilt, quint, quintessence, quintet, quintuplet, quisling, quirk, quiz, quorum, quota, quotation, quotient