Answer:
309.8
Explanation:
The formula for area of square is one of its sides times another (or its side squared).
So if one of the side is 17.6, it would be 17.6^2 which is 309.76.
You then round one decimal place and get 309.8
Have a good day
309.8 mm
17.6 x 17.6= 309.76
309.76 rounded is 309.8
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