Question #2949e

1 Answer
Jan 7, 2018

58cm

Explanation:

Rhombus can be considered a modified parallelogram. Rhombus has all the 4 sides of equal length.

Therefore area of parallelogram = b×h
where, b = length of base
and h = height of parallelogram

Suppose, the length of base = b cm

So, 139.2= b×9.6 (9.6 cm is the height)

or, b = 139.29.6 = 14.5cm

As rhombus has all the 4 sides of equal length, therefore all sides are 14.5cm each.

Therefore, perimeter = 4×14.5 = 58cm