Quadrilateral Proofs

To prove parallelogram:

(Prove one)

-both pairs of opposite sides are parallel

-both pairs of opposite sides are congruent

-both pairs of opposite angles are congruent

-one pair of opposite sides is congruent and parallel

-the diagonals bisect each other

To prove rectangle:

(Prove one)

-quadrilateral is parallelogram with one right angle

-quadrilateral is equiangular

-quadrilateral is a parallelogram whose diagonals are congruent

To prove rhombus:

(Prove one)

-quadrilateral is parallelogram with two congruent consecutive sides

-quadrilateral is parallelogram whose diagonals are perpendicular to each other

-quadrilateral is equilateral

-quadrilateral is parallelogram and a diagonal bisects opposite angle

To prove square:

(Prove one)

-quadrilateral is rectangle with two consecutive sides congruent

-quadrilateral is rhombus with one right angle

Isockes Trapezio defition

base angles are =

how to prrove trapezoid is isocles

diagonals are =