dantexxp
dantexxp
15-08-2017
Mathematics
contestada
find the measure of angle A
Respuesta :
kphung76127
kphung76127
15-08-2017
90+(x+69)+(x+39)=180
90+2x+108=180
198+2x=180
2x=-18
x=-9
Final answer: x=-9
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