Let . Then
Then .
In the triangle CDF:
Then .
Now you have all the elements to find the area.
A right trapezoid has parallel sides AB and CD (AB > CD), a perpendicular side AD. The diagnoal AC equals to the side AB and the side AD equals to the side DC. A line through C, perpendicular to side BC intersects side AD in the point F. Find the area of the trapezoid if we know that DF=1.
Can someone please tell me how to set this problem up? I can solve it from there...
Thank you.
Let's see if I can make this clear enough for you . . .
WE DON'T DO YOUR HOMEWORK!
If you can't show a little initiative on your part,
show some work, evidence of some effort,
STOP WASTING OUR TIME!
Mod: Is THAT the message I should give all visitors?
.