ARCA-SWISS started producing professional cameras in the early fifties. The new Swiss All-Round-CAmeras, ARCA-SWISS, rapidly gained an excellent reputation based on. their precision and handling in practical situations. The first large-format reflex cameras, 6x9cm and. 4x5 appeared in 1960 and were the rage of Photokina.
3. Vertices is another word for angles. A triangle has three sides and therefore three vertices, or angles.    Vertices are corners, so a triangle has three corners, th â¦ us three vertices.    3   Vertices is another term for angles. three    3; a vertice is where the two lines intersect    A triangle has 3 vertices. It also has three angles and sides.
Two parallel lines intersected by a transversal form corresponding pairs of angles that are congruent. Adjacent angles share a common vertex and a common ray. Two intersecting lines form pairs of adjacent angles that are supplementary. Also, two intersecting lines form pairs of congruent angles, called vertical angles. Click each term below to see an example.