Respuesta :

Space

Answer:

m∠O = 105°

Step-by-step explanation:

Step 1: Set up equation

x + 40 + 3x = 180

Step 2: Solve

4x + 40 = 180

4x = 140

x = 35

Step 3: Plug in

3(35) = 105°

And we have our answer!

bleedingrainbows123

Answer:

C. 105°

Step-by-step explanation:

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