Question

if the length of a Diagonal of a Square is 6
$\sqrt{2}$
find perimeter and area

Answer 1

Area of square if diagonal is given =(diagonal/under root 2) whole square

Answer 2

area of square=1\2(diagonal) ^2
area of square=1\2(6√2)^2
area of square=1\2*72
area of square=36cm^2
area of square=a^2
a^2=36
a=6cm
perimeter=4a
perimeter=72cm