Question

if the area of square is 225 cm find its.
(a) length of one side. (b) perimeter

Answer 1

area of square is 225 cm square
length of 1 side =square root of 225
length is 15cm

perimeter is4×15=60 cm

Answer 2

Answer:

$a)Length\:of \:one \:side\\of\:the\: square = 15\:cm\\b)Perimeter=60\:cm$

Step-by-step explanation:

$Let\: Length\:of\:one\: side\\of \: a\:square = a \:cm$

$a) Area\:of\:the\: square (A)\\=225\:cm^{2}\:(given)$

$\implies a^{2}=225$

$\implies a = \sqrt{225}\\=\sqrt{15^{2}}\\=15\:cm$

$Now,\\b)Perimeter\:of\:the\:square (P)\\=4a\\=4\times 15\:cm\\=60\:cm$

Therefore,

$a) Length\:of \:one \:side\\of\:the\: square = 15\:cm\\b)Perimeter=60\:cm$

•••♪