Question

two supplementry amgles differ by 42 degree one of these angles is​

Answer 1

Step-by-step explanation:

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Answer 2

we have already know that the supplementary angle is 180 degree ok!!!

then first we considered X second angle ok!!

then,

42+X=180

X=180-42

X=138

therefore, then second angle is 138 degree okay!!!

I think this answer may be helpful for you!!!