Question

What are the possible values of the third face angle of a trihedral angle if two of the

face angles are 65° and 125°?

Answer 1

The sum of all three face angles can be expressed as follows:

65° + 125° + x = 360°

To find the possible values of x, we can solve this equation:

190° + x = 360°

Subtracting 190° from both sides of the equation gives us:

x = 360° - 190° x = 170°

Answer 2

upplementary angles add to 180 degree. but here, 125 + 65 = 190,