Answer:
m∠1= 51
Step-by-step explanation:
Remember, a triangle always equals 180 degrees.
62+67+m∠1=180
Add the degrees that are given.
129+m∠1=180
Once you've added, you subtract to both sides.
129+m∠1=180
-129 -129
m∠1= 51
In conclusion, the measure of angle 1 is 51 degrees.
