Most famous medieval cathedrals are in Europe (where the Christians were), and they were built between about 1000 and 1600 AD, during the Middle Ages. There are cathedrals all over Europe, in Spain, in England, in France, in Germany, and in Italy. The architecture of cathedrals is based on the old Roman basilica.
3 years ago. Hint: If you want PA = PB = PC all to be true, then you have to construct a circumcircle....which is done by finding the perpendicular bisector of AB, BC, and AC. ganeshie8.
Postulate 6: If two planes intersect, then their intersection is a line.+ Postulate 7: If two points lie in a plane, then the line joining them lies in that plane. Theorem 1.1: The midpoint of a line segment is unique. Postulate 8: The measure of an angle is a unique positive number.