According to the Vienna Convention, what shape is a 'Give Way' sign?

According to the Vienna Convention, a “Give Way” sign is an equilateral triangle with its apex pointing downward.

The sign is a priority sign: it tells approaching drivers to yield to traffic on the road they are entering or crossing, stopping if necessary. Its standard appearance is an inverted triangle with a red border and a white or yellow center.

The downward-pointing triangle is deliberately distinctive. It can be recognized quickly and remains identifiable even when the sign is partly obscured or viewed from an unusual angle. In countries that use the term “yield,” the sign has the same basic meaning as “give way.”

The Vienna Convention on Road Signs and Signals was adopted in 1968 and entered into force in 1978. It established international conventions for sign shapes, colors, markings, and signals, while allowing some national variations. The inverted triangle became the internationally familiar symbol for yielding priority.