Question

1. Prove that a quadrilateral is a rectangle if and only if the diagonals are congruent and bisect each other. help I need to prove both the left and right side

Answer 1

http://www.ck12.org/book/CK-12-Geometry-Concepts-Honors/section/4.7/

Answer 2

hi rebecca

Answer 3

can anyone give me another medal

Answer 4

this what I have so far
1.the rectangle KZHU because its given
2.< UKZ = < KZH = < ZHU = < HUK = 90° by definition of rectangle

Answer 5

There are two theorems that must be proved:

#1

if the diagonals of a quadrilateral are congruent and bisect each other
each other, then the quadrilateral is a rectangle.


#2

If a quadrilateral is a rectangle, then the diagonals of the rectangle are congruent and bisect each other.

Answer 6

I figure how to do 1 but I don't know how to prove #2If a quadrilateral is a rectangle, then the diagonals of the rectangle are congruent and bisect each other.