Question

In this circle, what is m∠A ?

Enter your answer in the box.

Answer 1

3d - 6 + 96 = 180
3d + 90 = 180
3d = 90
  d = 30
So
<A = 4d - 20
<A = 4(30) - 20
<A = 120 - 20
<A = 100

Answer
<A = 100°