Question

Side of a square whose area is 400sq cm is

Answer 1

$\huge{\mathcal{\blue{\underline{Answer}}}}$

$(side) {}^{2} = 400cm {}^{2} \\ side = \sqrt{400cm {}^{2} }$

$side = 20cm$

Answer 2

Answer:

area = a^2

400 = a^2

a = $\sqrt{400}$  

a = 20 cm

Step-by-step explanation: