What is the measure of angle O in parallelogram LMNO? will give brainiest
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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!