SOLUTION: in the accompanying diagram of parallelogram ABCD, m angle B=5x, and m angle c=2x+12. Find the number of degrees in <d. Is this the right approach? {{{2x+12+5x=180}}}

Algebra ->  Parallelograms -> SOLUTION: in the accompanying diagram of parallelogram ABCD, m angle B=5x, and m angle c=2x+12. Find the number of degrees in <d. Is this the right approach? {{{2x+12+5x=180}}}       Log On


   

Question 717041: in the accompanying diagram of parallelogram ABCD, m angle B=5x, and m angle c=2x+12. Find the number of degrees in Is this the right approach? 2x%2B12%2B5x=180
12%2B6x=180
6x=168
x=28
then
B=5x=5%2828%29=140
and then angle d is equal or congruent to angle B so the answer is 140
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