Answer
$$189.79 \space cm$$
Work Step by Step
1. Perfom the calculation:
$$85.66 \space cm + 104.10 \space cm + 0.025 \space cm = 189.785 \space cm$$
2. Identify the number of decimal places that the measurement with the fewest decimal places have.
- It is 2 decimal places, from $85.66$ or $104.10$
3. Round off the sum to 2 decimal places:
$$189.785 \space cm \longrightarrow 189.79 \space cm$$