2 Answers

Cbiggin · Answer 1 · 2018-07-15T01:34:48+0000

There is 180 degrees on a straight line so you can work out the unnamed angle in the triangle by doing 180-115 which is 65

There are also 180 degrees in a triangle so to work out y you do 180 - (65+85) = 30

So y = 30 degrees

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