Question

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

​

Answer 1

Answer:

3x+4x+5x=60

12x=60

x=60/12

x=5

3x=3(5)=15

4x=4(5)=20

5x=5(5)=25

Answer 2

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