Look for arcs inside each vertex. The same number of arcs indicate equal angles. Different numbers of arcs indicate different angles. To identify the symmetry of a triangle: Count how many ways ...

A triangle also has three angles — 1, 2, 3. These angles are created when two straight sides meet at a vertex. The angle sum of a triangle is 180 degrees. That means all triangles, no matter how ...

The plural for vertex is vertices. The angle is this bit the space where two rays meet. This is usually represented by an arc and measured in degrees. There are 360 degrees in one full rotation.

If a perpendicular is drawn from the vertex of the right angle of a right triangle to the hypotenuse, the triangles on each side of the perpendicular are similar to the whole triangle and to each ...