Source: wikibot/vertex-angle
= Vertex angle
{wiki=Vertex_angle}
The vertex angle refers to the angle formed at the vertex of a geometric shape, particularly in the context of polygons and triangles. In a triangle, the vertex angle is the angle opposite the base, while the two other angles are known as the base angles. For example: - In an isosceles triangle, the vertex angle is the angle between the two equal sides, whereas the base angles are the angles opposite the equal sides.