Question

I don’t really get this question so if anyone knows it please help

Answer 1

`116.82\:\text{square inches}`

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
`10^2=100\:\mathrm{in^2}`.

The area of a triangle is given by
`(1)/(2)\cdot b\cdot h`. Since the problem states that the overlapping squares are congruent, both legs of the triangle will be
`2.9` and intersect at a
`90^(\circ)` angle.

Thus, the sum of all four triangles is
`(1)/(2)\cdot 2.9\cdot 2.9\cdot 4=16.82\:\mathrm{in^2}`.

Therefore, the area of the window is:

`100+16.82=\boxed{116.82\:\mathrm{in^2}}`