The lengths of the diagonals of a rhombus are 16 cm and 12 cm respectively. Find the length of each of its sides.
Let ABCD is a rhombus AC and BD are its diagonals which bisect each other at right angles at O.
AC= 16 cm and BD = 12 cm
∴AO=162=8 cm
BO=122=6 cm
Now, in right △AOB
AB2=AO2+BO2 (Pythagoras Theorem)
=(8)2+(6)2
=64+36=100=(10)2
∴AB=10cm
But all the sides of a rhombus are equal
∴AB=10cm