The diagonals of a rhombus are 16 cm and 30 cm long. What is the length of each side?

Explanation

1. 01

   The diagonals of a rhombus bisect each other at right angles, giving four right triangles with legs 8 cm and 15 cm.

2. 02

   Side = $\sqrt{8^2 + 15^2} = \sqrt{289} = 17$ cm.