Question 134789
"A rhombus has a perimeter of 100 meters" __ this means each side is 100/4 or 25 m


the diagonals of a rhombus are perpendicular and they bisect each other


so a half of each diagonal and a side forms a right triangle, with the side as the hypotenuse


if the hypotenuse of a right triangle is 25 and one of the sides is 15, what is the other side?
__ HINT: 3-4-5
 

what is the area of this triangle (that is is one fourth of the rhombus)?
__ what is the area of the rhombus?