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Geometry : Perimeter

Mathematics
Tutor: None Selected Time limit: 0 Hours

Mar 21st, 2015

Hello, 

the perimeter of the square is 4 times the length of one side. If the perimeter is 20a, then divide that by 4 to get 5a.

Now that we know the length of the sides, we can find the area. 

to find the area, you would multiply the length times the width, which would be 5a* 5a= 25a^2, so choice 2 

Mar 21st, 2015

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Mar 21st, 2015
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