we know that
the perimeter of a polygon is the sum of the length sides
in this problem we have a triangle
so
the polygon has three sides
Let
the perimeter is equal to
The formula to calculate the distance between two points is equal to
Step 1
<u>Find the distance AB</u>
substitutes the values in the formula
Step 2
<u>Find the distance BC</u>
substitutes the values in the formula
Step 3
<u>Find the distance AC</u>
substitutes the values in the formula
Step 4
<u>Find the perimeter</u>
the perimeter is equal to
substitutes the values
therefore
<u>the answer is</u>