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3 votes
Please help me! Thanks.

Please help me! Thanks.-example-1
User BimoZX
by
7.7k points

2 Answers

1 vote

Answer:


\huge \boxed{\mathrm{129\° }}

Explanation:

Adjacent angles in a parallelogram add up to 180 degrees.


\mathrm{m \angle A + m \angle B=180}

Solving for
\mathrm{m \angle B}.


\mathrm{m \angle B=180-m \angle A}


\mathrm{m \angle B}=180-51


\mathrm{m \angle B=129}

User MuiBienCarlota
by
8.8k points
5 votes

Answer:

129 is yr ANSWER........

User Burktelefon
by
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