If the diagonals of a rhombus are 12 cm and 16 cm, find the length of each side.
In rhombus ABCD, diagonals AC and BD bisect each other at O at right angles.
AC= 16 cm. BD = 12 cm
∴AO=OC=162=8 cm
BO=OD=122=6cm
BO=OD=122=6cm
Now, in right angled ΔAOB,
AB2=AO2+BO2
=(8)2+(6)2=64+36=100=(10)2
∴AB=10cm
∴ Each side of rhombus = 10 cm