Question

perimeter of a triangle is 18 cm and its side are in ratio of 1:2:3 find the sides of triangle.​

Answer 1

Refer the attachment above ..

Hope it Helps !!

Answer 2

Answer:

All sides of the triangle are 3 cm ,6 cm and 9 cm.

Step-by-step explanation:

Given, perimeter of a triangle is 18 cm and ratio of all sides of the triangle is 1:2:3.

Let length of the first side be x cm and length of the second side be 2x cm and length of third side be 3x cm.

We know, perimeter of a triangle = sum of all sides of the triangle.

Now,sum of all sides of the triangle

$= (x + 2x + 3x) \: cm \\ = 6x \: cm$

According to question,

$6x = 18 \\ x = \frac{18}{6} \\ x = 3$

So, length of the first side

$= 1 \times 3 = 3 \: cm$

and length of the second side

$= 2 \times 3 = 6 \: cm$

and length of the third side

$= 3 \times 3 = 9 \: cm$

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