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The area of a rhombus is 139.2cm.cm.and its altitude is 9.6cm.find the perimeter of the rhombus?

2 answers

the base is 139.2/9.6 = 14.5

since all sides are the same, the perimeter is 4*14.5 = 58

we know that
perimeter of rhombus=area / altitude
=139.2/9.6
=14.5
perimeter = 4a
=4(14.5)
=58cm

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