Square Serving

Puzzle need help please :) ?

okay here is the problem:

One diagonal of a square serves as the shorter base of a trapezoid, and a line through one of the vertices of the square contains the other base. The leges of the trapezoid are extensions of two sides of the square. If the area of the square is 2800, what is the area of the trapezoid?

next question :
A sequence ___, ___, ___, 4, ___, 6, ___, __.
Every term after the 2nd is the sum of the 2 preceding terms.
What is the 8th term of this sequence?

please helppp
10 points

Well, the second question is kinda fun... the fifth term has to be 2, so that the fourth term + the fifth term = the sixth term. That means the seventh term is 2 + 6 = 8, and the eighth term is 6 + 8 + 14.

* * * *

OK, on the first one: Make a diagram so that you can visualize this. You should see that the area of the square is the same as two right triangles, while the area of the trapezoid is the same as three right triangles. So, the area of the trapezoid is 3/2 the area of the square, or 3/2 * 2800 = 4200.

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