Question

the diagonal of a rhombus are 20cm and 21cmrespectively then find the side of rhombus and it's perimeter

Answer 1

Let AC=20 AND BD=21 CM
AD=10 AND BO=10.5 CM
AB^2=AD^2+OB^2
=10^2+10.5^2
=100+110.25
=210.25
AB=14.5 IS THE SIDE OF THE RHOMBUS
PRIMETER=4S
=4(14.5)
=58 CM