[
  "Find the length of Square B first. Area = length x length, so length of B = square root of 100.",
  "Square root of 100 = 10. Length of B = 10 cm. Ratio of A to B = 5 : 10. Simplify by dividing both sides by 5.",
  "5 / 5 = 1, 10 / 5 = 2. Answer: 1 : 2."
]