Question

If BD and EG are parallel lines and m∠DCF = 125°, what is m∠DCA

Answer 1

55

Explanation:

Just subtract 180 and 125

You said that m∠DCF = 125° right?

And the m∠DCF and m∠DCA are linear pair because they have angles that share a side, so supplementary angles = 180

m∠DCF + m∠DCA = 180

replace (since m∠DCF = 125):

125 + m∠DCA = 180

-125 -125

m∠DCA = 180 - 125

m∠DCA = 55

Answer 2

55

Explanation:

FCA equals 180 degrees so you subtract 180 from 125 and get 55 degrees.