Why Don't Rectangle Diagonals Bisect Angles?

[terpsgirl]

Diagonals of a Rectangle?

Why don't the diagonals of a rectangle bisect the angles? This may seem so easy, but I'm having difficult time understanding it...I'm confused because I know that the digonals of a rectangle bisect each other...so then why don't the angles do the same? Pls. Help! THX

 

[dav2008]

Well draw a rectangle and draw in a diagonal.

Now you have two right triangles to work with. Now just see what has to be true if the two angles are to be equal.