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A vertex is a corner of a triangle and its plural is vertices
The vertex of a triangle is any one of its three corners.
It is the altitude.
the fire trangle is the trangle that is on fire
Triangle
180
a+b+c
A triangle has 3 vertices
Eqiilateral trangle i
Take a different route...
A rectanglular is a trangle
Right Triangle
A scalene triangle.
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