Answer: m∠2 =60
60=4x+12
subtract 12 from both sides
60-12=4x+12-12
60-12=4x
48=4x
divide both sides by 4
48÷4=4x÷4
48÷4=x
x=12
Plug it into the equation
4(12)+12=
48+12=
m∠2 =60
another proof is that they are congruent
I hope this is good enough:
5.2m questions
6.7m answers