Angles

The outer angle of the triangle ABC at the vertex A is 114°12'. The outer angle at the vertex B is 139°18'. What size is the internal angle at the vertex C?

Result

γ =  73.5 °

Solution:








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Following knowledge from mathematics are needed to solve this word math problem:

See also our trigonometric triangle calculator. Try conversion angle units angle degrees, minutes, seconds, radians, grads.

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