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Answer:
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Step-by-step explanation:
Find the distance between the three pairs first using the distance formula:
Take the first two points, and insert the values:
Simplify parentheses (two negatives makes a positive):
The distance between the first two points is 5. Use the nest two points, and insert values:
Simplify parentheses:
The distance between the nest two point is about 4.5. Use the remaining two points, and insert values:
Simplify parentheses (two negatives makes a positive):
The distance between the last points is 5. Add the distances together to find the perimeter of the triangle:
The perimeter is about 14.5.