The side of a triangle are in a ratio 3:4:5 if its perimeter is 60 cm then the smallest side is ??
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let take smallest side =3x
hence middle size side will be 4x
and largest one will be 5 x
perimeter of triangle= side+side+side
60cm=3x+4x+5x
12x=60
x=60/12
x=5cm
so smallest side =3x=3*5=15cm
hence middle size side will be 4x
and largest one will be 5 x
perimeter of triangle= side+side+side
60cm=3x+4x+5x
12x=60
x=60/12
x=5cm
so smallest side =3x=3*5=15cm
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