A, ( a +80 )
A. 100 - 2a
B. 112 - 7a
C. 182 - 2a
D. 254 - 5a
...
![subject](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 00:50 forschoolok123456789
A, ( a +80 )
A. 100 - 2a
B. 112 - 7a
C. 182 - 2a
D. 254 - 5a
E. 311 - 3a
F. 302 - 1a
Finding complementary or supplementary angle
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