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Sagot :
Answer:
12x+9
Step-by-step explanation:
We may find the perimeter of a shape by adding all of it's side lengths.
We can start by adding 2 sides together.
(5x+2)+(3x+8)=8x+10
Because we don't know the value of x, we can only add together the amount of times that it is multiplied.
Now we add the final side.
(8x+10)+(4x-1)=12x+9
Hope this helps friend.
Answer:
Side a = 3x + 8
Side b = 4x - 1
Side c = 5x + 2
● perimeter of a triangle = side a + side b + side c
perimeter of a triangle = (3x + 8) + (4x - 1) + (5x + 2)
perimeter of a triangle = 3x + 8 + 4x - 1 + 5x + 2
perimeter of a triangle = 3x + 4x + 5x + 8 +2 - 1
perimeter of a triangle = 12x + 9 or 3(4x + 3)
Therefore, the perimeter of the triangle is 12x + 9 or 3(4x + 3).
Note: 12x + 9 or 3(4x + 3), both could be the right answers, but for lower grades, the final answer would just be 12x + 9.
Hope that helps...
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