Perimeter of rhombus

=\( \Large 2\sqrt{d_{1}^{2} + d_{2}^{2}} \) = \( \Large 2\sqrt{(4.8)^{2}+(1.4)^{2}} \)

=\( \Large 2\sqrt{23.04+1.96} \)=\( \Large 2\sqrt{25}=2\times 5 \)=10 cm