Question

the length of a side of a traingle is 6 cm. the second side is twice the third side. if the perimeter of the traingle is 18 cm, find the sides of the traingle​

Answer 1

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length=6cm

let the 3rd side be x, then second side will be 2x

perimeter=18cm

p=sum all sides of triangle

18=x+2x+6

18=3x+6

18-6=3x

12=3x

12/3=x

4cm=x

2x=2×4=8cm

Answer 2

Answer:

6,4,8

Step-by-step explanation:

6+x+2x

is equal to 18

so 6+3x is 18

3x = 18- 6

3x = 12

x= 4

so the sides r 6 , 4 , 8