➷ Perimeter : [tex]4\sqrt{5}[/tex] x 4 = [tex]16\sqrt{5}[/tex] mm
Area : [tex]4\sqrt{5} * 4\sqrt{5}[/tex] = 80mm^2
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Answer:
perimeter = 16√5 units
area = 80 units
Step-by-step explanation:
perimeter of square = sum of all 4 sides
= 4√5 x 4
= 16√5 units
area of square = length of side ²
= ( 4√5 )²
= 4² · (√5)²
= 16 · 5
= 80
