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find the perimeter and area 9cm square???

Sagot :

Formula for the area of square
A=s²
Substitute
9=s²
Square root
3 cm=s

Formula for perimeter of a square
A=4s
Substitute
A=4(3)
A=12 cm
[tex]Area\ of\ a\ square; \\ \\ A=s^{2} \\ \\ Area=9 \\ \\ 9=s^{2}\ \ \ \ \ \ \ \ \ |Substitute\ Area\ to\ 9... \\ \\ \boxed{3\ cm.=s} \\ \\ \\ Perimeter\ of\ a\ square; \\ \\ P=4s \\ \\ P=4(3) \ \ \ \ \ \ \ \ \ \ |Substitute\ s\ to\ 3... \\ \\ \boxed{\boxed{Perimeter=12\ cm.}} \\ \\ Hope\ it\ Helps:) \\ Domini[/tex]