Question

Three sides of a triangle are s + 5t-2, s-8 and 2s - 4t+5. What is its perimeter?
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Answer 1

Answer:

Step-by-step explanation:

Perimeter of a triangle = s + s + s

= (s + 5t - 2) + (s - 8) + (2s - 4t + 5)

= s + 5t - 2 + s - 8 + 2s - 4t + 5

= 4s + t - 5

Answer 2

Answer:

(4s + t - 5)

Step-by-step explanation:

Given:- Sides of a triangle  s + 5t - 2, s - 8 and 2s - 4t + 5.

To Find:- Perimeter of the triangle.

Solution:-

Perimeter is the total distance of the boundary of a closed geometrical shape. It is measured in units cm, m, etc.

So, perimeter = sum of all sides of the figure.

∴ Perimeter = (s + 5t - 2) + (s - 8) + (2s - 4t + 5)

                   = s + s + 2s + 5t - 4t - 2 - 8 + 5

                   = 4s + t - 5

Hence, the perimeter of the triangle with sides s + 5t - 2, s - 8 and 2s - 4t + 5 is (4s + t - 5).

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