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A supplementary angle is split into 2 angles. One angle is 2x + 20°. The other angle is 40°. Solve for x and find the measurement of the missing angle.



Answer: x =

Answer: the missing angle = º

Respuesta :

nihalachar

A supplementary angle means 180 degrees

2x + 20 = 40

2x = 40- 20

2x = 20

x = 10

The first angle is = 2(10) + 20

                            = 20 + 20

                            = 40 degrees

Therefore

x = 10

First Angle = 40