Question

Perimeter of a triangle is 18 cm . If length of one side is 5 cm , the sum of the other two sides will be ​

Answer 1

Step-by-step explanation:

Let the other two sides be x and 2x.

Therefore,

Perimeter of Triangle = Sum of lengths of all sides

18cm = 5cm + x + 2x

18cm = 5cm + 3x

18cm - 5cm = 3x

13cm = 3x

13cm/3 = x

4.33cm = x

Now,

x = 4.33cm

And

2x = 2×4.33cm

= 8.66cm

Therefore, The other two sides of Triangle are 4.33cm and 8.66cm.