Question

I forgot how to do this. Can anyone help me please

Answer 1

X°+X°+12°+100°=180°{Being strangle angle}

2x°+112°=180°

2x=180°-112°

2x= 68°

X=68°/2

X=34°

Answer 2

34

Explanation:

180 since it is supplementary

then minus 100 which is 80 then minus 12 which is 68 then half that which is 34