Question

The perimeter of a rhombus is 80 centimeters. The lengths of its diagonals are in the ratio 3:4. Find the length of each diagonal.

Answer 1

google is your friend. The following site is about finding the area, but it also shows how to get the lengths of the sides, so you can use that to find the perimeter.

https://www.algebra.com/algebra/homework/Surface-area/Surface-area.faq.question.450961.html