The line on which the triangle stands is called the "base". The angles at the base are called base angles.

The other two sides are referred to as "legs".

The side opposite to the "base" , the top pointed part of the triangle , is called the 'Vertex Point". The angle formed at the vertex point by the two legs is called the "Vertex Angle".

Hope this helps :)

Well , the horizontal side on which the triangle stands is called it's base.So the top opposite the base would be the "vertex opposite the base".That is all.

...Triangles don't really have 'tops' or 'bottoms'. The three angles, or corners, which make up the triangle are usually each called a vertex.

...If you are looking at a triangle standing on its base, then you will have the highest point at the top

called the 'apex or vertex'