Question

the area of rhombus is 240cm2 and one of the diganol is 16cm .find the other diagonal

Answer 1

area of rhombus =
$\frac{1}{2} \times d1 \times d2 = 240$
given area is 240
and D1 is 16
so
$\frac{1}{2} \times 16 \times d2 = 240 \\ 8 \times d2 = 240 \\ d2 = 240 \div 8 \\ d2 = 30$
second diagonal is 30cm