Question

The sum of angles of a triangle formed in a spherical geometry is equal to ${180}^o$.

• A. True
• B. False

Answer 1

The correct option is B False

The sum of angles of a triangle formed in a spherical geometry is always greater than ${180}^o$. It is ${180}^o$ only in 2 - D geometry. Spherical geometry is 3-D, applied to 3-D entities. Hence the angle will be greater than ${180}^o$.