The sides of a triangle are in the ratio 1/3 :1/4:1/5 and it's perimeter is 94cms.What is the length of the smallest side?
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first take LCM of 3,4 and 5 then multiply in ratio to change into a integer number then multiply by x to make perfect.
LCM of 3,4 and 5 is 60
now 1/3×60=20
1/4×60=15
1/5×60=12
now the sides of triangle is 20x
15x and 12x.
so 20x+15x+12x=94 [given perimeter]
47x=94
x=2
so the smallest side is 12x=12×2=24 cm
LCM of 3,4 and 5 is 60
now 1/3×60=20
1/4×60=15
1/5×60=12
now the sides of triangle is 20x
15x and 12x.
so 20x+15x+12x=94 [given perimeter]
47x=94
x=2
so the smallest side is 12x=12×2=24 cm
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