4 years ago

I don't even know where to begin. Help

Mathematics

1 answer:

ankoles [38]4 years ago

7 0

<CAD+<CDA=90
2x-y+x-1=90
3x-y=91
<CBD+<CDB=90
2x+3+y-2=90
2x+y=89
then
3x-y=91
2x+y=89
5x=180
x=36
y=17
<CDA=35
<CDB=15

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