the diagonal of rhombus measure 16 and 13cm . find its perimeter
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15 is the answer plzz give me a brain list
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diagonal of rhombus bisect each other at 90°
so, suppose ABCD is rhombus and it's diagonal AC&BD bisect each other at O and from 90° angel
in AOD
AO= 8 and OD = 6.5
<AOD=90°
using pythogoras theorem
AD=root 8²+6.5²
AD=root64+42.25
AD=10.30
perimeter of rhombus= 4X sides
= 4X10.30
=41.20cm
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