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olasank [31]
3 years ago
8

Parallelogram (x 40) and (3x)

Mathematics
1 answer:
fenix001 [56]3 years ago
8 0
<span>x-y=2y -> x=3y and 
3x-40+2y=180 --> 9y-40+2y=180 --> 11y=220 --> y=20, x=60 --> <A=<C=140 degrees, <B=<D=40 degrees.</span>
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