Any lower base angle is supplementary to any upper base. The segment that joins the midpoints of the parallel sides is perpendicular to them.

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One pair of congruent legs da and cb.

Properties of an isosceles trapezoid. The angles where the two pairs meet are equal. Base angles the base angles of an isosceles trapezoid are congruent. One pair of parallel sides ab and dc.

The bases in an isosceles triangle are parallel and the legs are congruent. Opposite angles are supplementary their sum is 180 degrees. An isosceles trapezoid is a quadrilateral having the following properties.

The properties of trapezoid apply by definition parallel bases. The diagonals have the same length. The angles on either side of the bases are the same size measure congruent.

Diagonals are congruent ac and bd. Opposite angles are supplementary which in. Base angles of an isosceles trapezoid are equal.

The legs are congruent by definition. An isosceles trapezoid as shown above has left and right sides of equal length that join to the base at equal angles. If you look at the picture below angles w and x are congruent and angles z and y are congruent.

The lower base angles are congruent. The bases top and bottom of an isosceles trapezoid are parallel. Diagonals of an isosceles trapezoid are equal.

The defining trait of this special type of trapezoid is that the two non parallel sides xw and yz below are congruent. A special trapezoid is the isosceles trapezoid like an isosceles triangle. Properties of the sides of an isosceles trapezoid.

The base angles have the same measure. The upper base angles are congruent. Any one of the following properties distinguishes an isosceles trapezoid from other trapezoids.

Base angles are congruent m d m c. If a trapezoid has a pair of congruent base angles then it is an isosceles trapezoid. Each pair is made of two equal length sides that join up.

Hey it looks like a kite usually. The properties of the isosceles trapezoid are as follows. If a d or if b c then trapezoid abcd is isosceles.

It has two pairs of sides. The interior angle measure of an isosceles trapezoid will equal 360 degrees and the adjacent angles are supplementary. Opposite sides of an isosceles trapezoid are the same length congruent.

Two special properties of an isosceles trapezoid can be proven.