6. Each side of a square is 7 m. If its each side be increased by 3 m, what will be the increase in its area.
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Answer:
+2will be increase
Solution:
Area of square = 4×side
=4×7=28 m
=7+3=10 4×10=40m
To find increase = Area of Square thaat side is 10 m - Area of square whose side is 7 m.
Increase =40-28
=12 m
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