The perimeter of a rhombus is 52 units. One of its diagonal is 24 units. What is its second diagonals length?  Choose the correct answer: A) 5 B) 10 C) 15 D) 20 E) 25
When the perimeter of a triangle is 52 units each side is 13 units   Next, the diagonal of a rhombus bisect each other at 90 degree   Thus the half of the diagonal is 12 units   Now in a right angle triangle so formed, the perpendicular is 12 and the hypptenuse is 13(that is the side of the triangle)   Finding the base(which is half of the other diagonal):   13^2-12^2 =25   Thus half of the diagonal is 5 and the diagonaL IS 10UNITS   ANSWER:10
<result>B</result>
The perimeter of a rhombus is 52 units. One of its diagonal is 24 units. What is its second diagonals length?