Answer:
C. 0.038 km² > 3.8 m² > 380 cm² > 3800 mm²
Step-by-step explanation:
Convert every measurement to the same unit, say, square metres.
(a) 3.8 m²
No conversion necessary
(b) 380 cm²

(c) 0.038 km²

(d) 3800 mm²

In decreasing order, 0.038 km² > 3.8 m² > 380 cm² > 3800 mm²
Answer:
Step-by-step explanation:
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I would say the answer is A.