They will form a 4 sided quadrilateral if the triangles are the same sizes.
two isosceles triangles with common line
In two dimensions, a circle, ellipse. In fact any smooth closed curve.
Congruent shapes simply means both shape are identical, therefore to find two right-angled triangles are congruent you:Use a tracing paper and trace the right-angled triangle (A) and see if it matches with the other right-angled triangle (B).Another way is to find the positions or measure the triangles, if the match then viola! they're the same.
A polyhedron with two congruent triangles. There are very many possible configurations.
the shape that can make two smaller triangles is parallelogram.
it makes a dimond
All of them.
The two triangles would make either a square or a rectangle.
Two triangles can but its an irregular shape
Those would be SIMILAR triangles.
draw a rectangle and two triangles on top
Two triangles,two rectangles
A triangular prism, where the two ends are triangles.
There are quite a few. Circles, squares, triangles...