Question

answer this question step by step ​

Answer 1

Answer:

PERIMETER OF TRIANGLE = sum of all sides = 12cm + 15cm + 13cm = 40cm

Answer 2

Answer:

formula for finding perimeter of a triangle is To calculate the perimeter of a triangle, add the length of its sides. For example, if a triangle has sides a, b, and c, then the perimeter of that triangle will be P = a + b + c.

Step-by-step explanation:

so the perimeter of triangle the triangle in your question is :

$sides \: of \: traiangle = 12cm \: 15cm \: and \: 13cm$

$therefore \: perimeter \: of \: the \: triangle \: = 12 + 15 + 13 = 40$

The answer is 40

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