In a square, the diagonal can be found using the formula that involves the side length multiplied by the square root of two. First, find the side by taking the square root of the area, then apply the diagonal formula specific to squares.
A square field has area 16 cm², then length of diagonal is _____?
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Question context
This question is part of 📐 Geometry within the broader 🧠 Aptitude Mastery subject and appears in the ETEA Educational Testing and Evaluation Agency preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.