The perimeter of a triangle is 60cm. Sides are in the ratio 3:4:5. Find the
length of the sides.

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2 thoughts on “The perimeter of a triangle is 60cm. Sides are in the ratio 3:4:5. Find the<br />length of the sides.<br /><br />​”

1. Answer:

   Let the sides of the triangle be 3x,4x and 5x

   Step-by-step explanation:

   perimeter = sum of all sides

   60 = 3x +4x +5x

   60 = 12x

   5 = x

   length of the sides are 3x = 3×5

   = 15

   4x= 4×5 = 20

   5x = 5×5 = 25

   15cm,20cm and 25cm

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2. Answer:

   3x+4x+5x=60

   12x=60

   x=60/12

   x=5

   3x=3(5)=15

   4x=4(5)=20

   5x=5(5)=25

   Reply