Posted by **Thomas** on Sunday, January 5, 2014 at 4:59pm.

A square has a side of length 2 inches. How long is a side on a square that has twice the area?

please answer and explain

- math -
**Steve**, Sunday, January 5, 2014 at 6:44pm
since a = s^2

2a = (√2 s)^2

so, the side grows by √2

check:

if a = 2, s = √2

if a = 4, s = 2 = √2 * √2

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