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Llana [10]
3 years ago
7

What is the value of x? Enter your answer in the box.

Mathematics
2 answers:
vodka [1.7K]3 years ago
6 0
All the angles in a triangle add up to 180° so subtract 102° and 39° to get 39°
galina1969 [7]3 years ago
4 0
Interior angles of a triangle add up to 180

39 + 102 + x = 180
141 + x = 180
x = 180 - 141
x = 39 <==
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