One side of the triangle is 12cm, it is 4cm more than the second side and 3cm more than the third.

One side of the triangle is 12cm, it is 4cm more than the second side and 3cm more than the third. Calculate the perimeter of this triangle.

Find the value of the second side of this triangle, for this you need to reduce the first side of the triangle by 4 cm:

12 cm – 4 cm = 8cm – the value of the second side of the triangle;

Let’s find the value of the third side of this triangle, for this it is necessary to reduce the first side of the triangle by 3 cm:

12 cm – 3 cm = 9 cm – the value of the third side of the triangle;

Let’s find the value of the perimeter of this triangle, for this it is necessary to add the values ​​of all sides of this triangle:

12 cm + 8 cm + 9 cm = 29 cm – the value of the perimeter of this triangle.

Answer: 29 cm is the value of the perimeter of this triangle.




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