{
  "hints": [
    "In a parallelogram, adjacent angles (like a and b) add up to 180 degrees.",
    "The ratio a : b = 3 : 2 means there are 3 + 2 = 5 equal parts in 180 degrees.",
    "1 part = 180 / 5 = 36. Multiply by 3 to get angle a."
  ]
}