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musiclover10045

opposite angles are equal so where the 110 is outside the triangle, it is also 110 inside the triangle.

 the 3 angles need to = 180

 so you have 110 + 57 = 167

x = 180-167 = 13

x = 13

j24601
The top angle is going to be 110 too so you add 110 and 57 which equals 167. Subtract that from 180 and the answer is x=13