mDE=125° and mBC=67°.
Find the m
(1 point)
Responses
58°
58degree
29°
29degree
34°
34degree
68°
We can start by finding the measure of angle ACD:
mACD = 180 - mDE - mBC
mACD = 180 - 125 - 67
mACD = 180 - 192
mACD = 12°
Now, since angle ACD is a vertical angle with angle BCF, we know that:
mBCF = mACD = 12°
Therefore, mABC = mDE + mBCF = 125° + 12° = 137°
The measure of angle ABC is 137°.