Question

Find the area of a rhombus whose perimeter is 80 m and one of whose diagonal is 24 m

Answer 1

side of rhombus is 80/4=20m ,now in triangle aob use Pythagoras theorem to calculate ob and thus to calculate another diagonal length.Now, the area of rhombus is 394m2...

Answer 2

Formula to find Area of Rhombus :1/4*d*sqrt(p^2-4*d^2) where p=80 d=24 substitute the values in formula and we get the area is 384m^2