Question

Find second diagonal of rhombus side is 5cm and onediagonal is 8cm

Answer 1

$\huge\boxed{\texttt{\fcolorbox{Red}{aqua}{Hello Friend}}}$

Side of rhombus= 5 cm

So, area = side×side
=5×5
=25cm^{2}

Area of rhombus
$\frac{1}{2} \times d1 \times d2$
$25 = \frac{1}{2} \times 8 \times d2 \\ d2 = \frac{25 \times 2}{8} \\ d2 = 6.25$
Hope it helps you.