Question

ABCD is a rectangle; the relationship of area of shaded region to area of rectangle is?

Answer 1

what are the chooses?

Answer 2

1/3, 2/3, 1/2, 3/4, cannot be determined

Answer 3

Here is the picture that goes with the question

Answer 4

I think it is 2/3. What do you think? @dan815

Answer 5

@HELP!!!!
There is no explanation with your answer - it sounds like a guess.

Here is a starting point:

Draw a line parallel to AB at EVERY point where there is a diagonal line. You will see that this creates a rectangle that is HALF shaded, and HALF not.



this is true if the triagles don't overlap

try to prove if it's true when they DO