Oops. Apparently I had no idea what I was talking about.
If I'm reading this right, you just need to put t as 0 and 8.
Wow rude. Glad I could help tho
If I'm reading this correct, that last bit of information about E is unneccesary. The area of a trapezoid is the average of the bases times the height. Since BC is perpendicular to the bases, (AB and DC) it is the height. To find the average of the bases, add them together and divide them by how many factors there are. So \(A = \frac {14 + 18}{2} \cdot 7 = 16 \cdot 7 = 112\).
Hope this helps!
Explains why CPhills is so high...
I was gonna say Oscillation, but that works too. Good job!
If you have basic problems like this, then you might find a calculator more useful than a forum. However, the answer is 73456512. Just plug it into a calculator, and there you have it.
It doesn't specify what type of quadrilateral, so you can use any kind, and I would think a square would be the easiest to prove. Draw the diagram, label the points, and see if you can prove it from there.
Let all possible slopes be S. S is anything bigger than or equal to 1, and anything smaller than or equal to -1.
If you draw the diagram, you can see that the pentagon is made up of the three triangles that we got the area of. So \(A=10.2+11.5+16.3=38\).
