A. 0.7
B. 0.5
C. 0.4
D. 0.167
🧠 Explanation:
The square root of 0.16 is 0.4, since 0.4 × 0.4 = 0.16. This simple math concept helps students learn square roots, which are used in geometry, physics, or everyday calculations like finding areas or solving equations in school or work.
