triangle

[Guest]

find the value of x and list the sides of triangle ABC from shortest to longest if the angles have the indicated measures.

ext. angle at A =184-9x
measurement of angle B = 4x-16
ext angle at C = 2x + 112

 

[Gene]

A+B+C =
180 - (184-9x) + 4x-16 + 180 - (2x + 112) = 180
11X = 132
Is this realy calculus?