Question

sides of a triangle are in the ratio 3:4:5 and its perimeter is 12 ​

Answer 1

Answer:

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Answer 2

Perimeter = sum of all the sides

Since sides are in the ratio 3:4:5

Let the sides be 3x , 4x & 5x

3x + 4x + 5x = 12

12x = 12

x = 1

Hence the sides are :-

3x = 3*1 = 3 units

4x = 4*1 = 4 units

5x = 5*1 = 5 units

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