word usage - "It is 50 square meters" or "It is 50 meters square"?

Which one is correct?

"It is 50 square meters" or "It is 50 meters square"?

Google "50 square meters"-->600k

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Answer

A rectangle measuring 5 metres by 10 metres has an area of 50 square metres.

A square with sides of 50 metres is said to be 50 metres squared (or 50 metres square) and has an area of 2,500 square metres.