In Euclidean geometry, yes.

In Euclidean geometry, yes.

In Euclidean geometry, yes.

In Euclidean geometry, yes.

One main characteristic of non-Euclidean geometry is hyperbolic geometry. The other is elliptic geometry. Non-Euclidean geometry is still closely related to Euclidean geometry.

One main characteristic of non-Euclidean geometry is hyperbolic geometry. The other is elliptic geometry. Non-Euclidean geometry is still closely related to Euclidean geometry.

both the geometry are not related to the modern geometry

The geometry of similarity in the Euclidean plane or Euclidean space.