Question

The formula for finding the area of a square that has a side length, s, is A = s2. If a square has an area of 40 square units,
what is the length of a side?
$^{2} \sqrt{10}$
$^{10} \sqrt{2}$
$20$

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Answer 1

Answer: $s=2\sqrt[]{10}$

Step-by-step explanation:

$A=s^2$

$s=\sqrt[]{A} \\s=\sqrt[]{40} \\s=\sqrt[]{10*2^2} \\s=2\sqrt[]{10}$