Exterior angles
They are called supplementary angles.
It's most often denoted as the "outside".
An equilateral triangle.
Such is called an exterior angle. A useful theorem is that an exterior angle is equal to the sum of its non adjacent interior angles.
Yes. The trench is for what's called a footing.This footing is a mass of concrete that supports the building and keeps it from sinking into the ground.
Because the Romanesque architecture combines elements of older Roman (think ancient Rome) and Byzantine architecture. Mostly this type of architecture was prevalent during the Dark Ages in Europe, which came after the fall of the Roman empire.
buildings, Russian buildings
A post that supports a roof is called a column.
The dates given for the beginning of the Romanesque period range widely from the 6th to the 10th centuries, though most modern historians tend to the 10th. It lasted until the 12th century. There are links below to articles on the Romanesque.
Exterior
greek buildings
The wedge-shaped stones that form the arch in a Romanesque church are called voussoirs. These stones are precisely shaped and stacked to create the curved structure of the arch, which helps distribute weight downwards and outwards. The arches in Romanesque architecture are known for their simple and sturdy design, reflecting the architectural style of the time.
They are called "buildings" regardless of what is on tip of them.
Jewish people don't worship buildings, they worship God. They do however worship IN buildings called Synogogues.
The burial buildings are called pyramids. There are several rooms in a pyramid.
The urethra extends from the bladder and carries its contents to the exterior of the body.