Yes, they can.
To demonstrate this draw a square on a sheet of paper. Draw a line diagonally from one corner to the one opposite. Cut along this line and you will have two triangles. Take them apart; if you put them together again in the right way you will have a square. Put together in different ways you can make an isosceles triangle or an equilateral parallelogram.
If you do the same thing beginning with a rectangle, you will be able to reassemble the triangles to form a rectangle, isosceles triangle or a (non-equilateral) parallelogram.
Well, honey, with 2 squares and 2 triangles, you can make a lovely little house shape. Just slap those squares together for the base, and plop those triangles on top for the roof. Voila! You've got yourself a cute little geometric abode.
square and 2 triangles put together
If you have 2 EQUILATERAL triangles, and you stack them on their respective hypotenuses, the result: SQUARE. If you have 2 ISOSCELES triangles, and you stack them on their respective hypotenuses, the result: RECTANGLE. If you have 2 OBTUSE triangles, and you stack them on their respective hypotenuses, the result: PARALLELOGRAM.
A minimum of 2 triangles are needed, but you can also make a rectangle with 3 or more triangles.
square and rhombus i think
yes
yes it does
Well, honey, with 2 squares and 2 triangles, you can make a lovely little house shape. Just slap those squares together for the base, and plop those triangles on top for the roof. Voila! You've got yourself a cute little geometric abode.
A rectangle.. If you combine the triangles to make another square and then place all the squares in a row it makes a rectangle. you can also make a trapezium, if you place the 2 squares next to each other and then the triangles beside them...
A double house?.
a rectangle
No two equilateral triangles do not make a square but two right triangles do.
square and 2 triangles put together
Inscribed triangles in a rectangle are identical right triangles but they are rotated 180 relative to each other.
If the 2 triangles are right triangles, which are congruent to slicing the rectangle on the diagonal, then arrange one on top of the rectangle, and the other to the side, so that the two hypotenuses are in line with each other. This will make a bigger right triangle, which is similar to the smaller right triangles - each side is double of the smaller triangles.
A square already has 2 right angle triangles within it
a square