Answer:

Step-by-step explanation:
The window consists of a large square and 4 smaller triangles on the outside. The side length of this square is marked as 10, and therefore the area of this square is
.
The area of a triangle is given by
. Since the problem states that the overlapping squares are congruent, both legs of the triangle will be
and intersect at a
angle.
Thus, the sum of all four triangles is
.
Therefore, the area of the window is:

7:35 would be the ratio hope this helps! :))
Volume=length*width*height (for a rectangular prism)
Plug in the values.
4 1/4*3*1 1/4= the volume
4 1/4*3= 12 3/4, so:
12 3/4 * 1 1/4 is correct as well.
The answer you checked is the correct answer.
I hope this helps!
~kaikers
4(x+2) = 4·x + 4·2 = 4x + 8
3(x+7) = 3·x + 3·7 = 3x + 21
5(2x+7) = 5·2x + 5·7 = 10x + 35