Answer:
Step-by-step explanation:
Sum of all angles of triangle = 180
39 + 102 + x = 180
141 + x = 180
Subtract 141 from both sides
x = 180 - 141
x = 39
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hope this helps!
39
you do 180 and subtract both values you already have 102 and 39. you get the answer of 39
295
