Question

If the diagonal of rhombus is equal then prove that it is square​

Answer 1

as we know area of rhombus =1/2 *product of diagonals

now

let the diagonal be x

then

area =1/2*x^2 .......(1)

(since the area of square when the diagonal is given =1/2(diagonal)^2

area=1/2*x^2........(2)

again

eqn 1 =2

hence proved