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Sunny888
6.1cm, 6.1cm and 3.1cm
Topmadworld
Hey there,
Isosceles triangle means that 2 side are of the same length. 
Let's name all sides as x,
Total = 15.6m
x + x + x - 3m = 15.6m
x + x + x= 15.6 m - 3m
               = 12.6m
x + x + x = 12.6m
3x = 12.6m
x= 4.2m
Each of the sides are = 4.2m + 3
                                  = 7.2 m
Base = 4.2m
Thus, it is 7.2m, 7.2m and 4.2m

Hope this helps :))

~Top

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