# Solution: Determine the spherical excess of the spherical triangle ABC

Determine the spherical excess of the spherical triangle ABC given a = 56º, b = 65º and c = 78º. How to compute for the spherical excess?

#### Problem Statement:

Determine the spherical excess of the spherical triangle ABC given a = 56º, b = 65º and c = 78º.
• A. 33º33’
• B. 68º37’
• C. 91º57’
• D. 98º45’

The spherical excess of the spherical triangle ABC is 33º33’.

Solution:

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