Spherical geometry is a form of geometry.
a. euclidean
b. plane
c. non-euclidean
d. archimedean

The correct answer is C. non-Euclidean.

Where Euclidean geometry deals with the study of flat space, Spherical geometry does not. Therefore, it is non-Euclidean.

As the term Spherical is derived from the root word “sphere” meaning a round solid figure or a round surface, this branch of geometry deals with the study of curved surfaces found in a sphere.

A sphere does not have a flat surface; therefore, Euclidean geometry cannot be applied. Non-Euclidean geometry can only be applied in this study, specifically in the form of Spherical geometry.