To join triangles to make quadrilaterals, you can align two triangles along one of their edges, ensuring that the edges match perfectly. By combining the two triangles this way, their adjacent sides form a new quadrilateral. You can also use multiple triangles, ensuring that their edges continue to align to create a closed four-sided shape. Experimenting with different triangle orientations can yield various quadrilateral shapes.
They make four triangles, not a triangle.
No, they do not.
Join them together
Inscribed triangles in a rectangle are identical right triangles but they are rotated 180 relative to each other.
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. They can have faces which are triangles, quadrilaterals, pentagons, hexagons or heptagons,
Any 2 congruent triangles joined together will form a 4 sided quadrilateral
go to math facts dot com go to math facts dot com
They make four triangles, not a triangle.
No, they do not.
Join the 6 triangles like pizza slices
All triangles have 3 interior angles that add up to 180 degrees and the 4 interior angles of a quadrilateral add up to 360 degrees but if 2 of its vertices are joined by a diagonal this marks out 2 interior triangles each having 3 interior angles adding to 180 degrees.
Join them together
you might get a kite if the triangles are the same then you might get a rectangle
Three I think but I'm not 100% sure. :-)
If they are congruent right angle triangles then just join them together side by side to form a parallelogram.
Inscribed triangles in a rectangle are identical right triangles but they are rotated 180 relative to each other.
You make a dimondxoxoxoxoxoxoxoxo