

If you place a REGULAR TRAPEZOID inside of a box (a rectangle or a square), then you can FOLD BOTH of its sides to the same sides to obtain a rectangle or a square.


If you place a ISOSCELES TRAPEZOID inside of a box (a rectangle or a square), then you can MOVE ONE of its side to the opposite side of the trapezoid to obtain a rectangle or a square. Its length is equal to the average lengths of the bases (base 1 + base 2)/2. MEDIAN - A trapezoid’s median is the segment that connects the middle of its legs. The HEIGHT is the distance at right angles from one base to the other base.įORMULA 2: Area Trapezoid = median x height.The LEGS are the two (2) non-parallel sides.The BASES are the two (2) parallel sides.Some sources would qualify this with the exception: 'excluding rectangles.' Two opposite sides are parallel, and the two other sides are of equal length. It is helpful to think of a TRAPEZOID as looking at a SQUARE from a top-level perspective view.įORMULA 1: Area Trapezoid = (base 1 + base 2)/2 x height In Euclidean geometry, an isosceles trapezoid is a convex quadrilateral with a line of symmetry bisecting one pair of opposite sides, making it automatically a trapezoid. A trapezoid is called a " trapezium" in the UK but its definition is opposite the US with NO parallel sides.Base Angles The base angles of an isosceles trapezoid are congruent. In fact, it is helpful to think of an isosceles trapezoid as an isosceles triangle with its "top" cut off. Isosceles Trapezoid An trapezoid with congruent Legs Base Angles Diagonals The defining trait of this special type of trapezoid is that the two non-parallel sides ( XW and YZ below) are congruent. Like a isosceles triangle that has at least two equal sides, an isosceles trapezoid has equal sides and angles. Isosceles-trapezoid as a noun means A quadrilateral with two parallel sides and a separate pair of congruent > sides which.When the sides that are NOT parallel are equal in length and both angles coming from a parallel side are equal, it is called an Isosceles Trapezoid. As shown in the picture below, the parallel sides of trapezoid. Quadrilateral > Trapezoid TRAPEZOID DEFINITIONĪ trapezoid is a quadrilateral that has A PAIR OF OPPOSITE PARALLEL SIDES. A trapezoid is a quadrilateral with only one pair of parallel sides.
