The fear of triangles is known as "trianglophobia." This specific phobia can manifest as anxiety or discomfort when encountering triangular shapes or objects. Like other phobias, it can vary in severity and affect an individual's daily life. Treatment options may include therapy or exposure techniques to help manage the fear.
A pair of triangles can form a 4 sided quadrilateral
They are congruent triangles.
trapezoid
Trignometry
When triangles have the same shape but not necessarily the same size, they are called similar triangles. This means that their corresponding angles are equal, and their corresponding sides are in proportion to each other. Similar triangles can be scaled versions of one another.
Similar triangles
Some, but not all. Triangles with 2 congruent sides are called isoceles triangles. Triangles with 3 congruent sides are called equilateral triangles.
The set of all triangles, probably.
A pair of triangles can form a 4 sided quadrilateral
They are congruent triangles.
trapezoid
Trignometry
hexagon
Those would be SIMILAR triangles.
There is no word for the fear of boogers
if you're talking about 2 triangles that overlap, then yes and they are called overlapping triangles. XD
The fear of fears is called phobophobia. It is the fear of getting a phobia.