Respuesta :

carlafossil320
One of the circle theorems is that opposite angles in a cyclic quadrilateral sum to 180°.
So, m<A + m<C = 180°. Let's substitute:
3x+6+x+2=180
4x+8=180
4x=172
x=43°
m<A = 3x + 6
m<A = 3(43)+6
m<A = 129+6
m<A = 135°
nvhunter338

Answer:

135 is the answer for future users.

Step-by-step explanation: