Question

calcule: a)
$\sqrt{400}$
b)
$\sqrt{121}$
c)
$\sqrt{144}$
d)
$\sqrt{169}$
e)
$\sqrt{225}$
f)
$\sqrt{625}$

Answer 1

a) 20, pois 20² = 400

b) 11, pois 11² = 121

c) 12, pois 12² = 144

d) 13, pois 13² = 169

e) 15, pois 15² = 225

f) 25, pois 25² = 625

Answer 2

a. 20
b.11
c.12
d.13
e.15
f.25