Seudónimo
Seudónimo
11-05-2018
Mathematics
contestada
How do you do this and what is the answer
Respuesta :
popalabdulqayou
popalabdulqayou
11-05-2018
we know opposite angles in the parallelogram is congruent:
let x to be the unknown angle:
360=2(110)+2x
360=220+2x
140=2x
x=70
ECF is also 110 because of parallel lines and corresponding angles:
110+x+y=180
110+30+y=180
y=40
so DAE is 40
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