Area of a square from its diagonal:\nFind the area (in sq. m) of a square whose diagonal measures 3.8 m.

Introduction / Context:
For a square of side s and diagonal d, the relation is d = s√2. Hence the area s^2 can be written in terms of d as s^2 = d^2 / 2.

Given Data / Assumptions:

• Diagonal d = 3.8 m.
• Area A = s^2 = d^2 / 2.

Concept / Approach:
Compute d^2 and divide by 2 to get area. Keep two decimal places to match options.

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