Question

if the area of a square is 225 cm square then find (a) its perimeter and (b) the length of a diagonal.

Answer 1

Answer:

Step-by-step explanation:

Cube root of 225 = 15 cm

(a) Perimeter = 15 * 4 = 60 cm

(b) Length of a diagonal = ?

Answer 2

as area of square =
${a}^{2}$
then
${a }^{2} = 225 \\ \\ a = 15$
perimeter = 4a
4×15=60 cm
as digonal of square =
$a \sqrt{2}$
therefore
$15 \sqrt{2}$
ans