$\"\"$

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The given vertices are $\"\"$ .

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The perimeter of a triangle equals to sum of the lengths of the sides.

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Use distance formula to find the lengths of the sides.

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The distance between any two points with coordinates $\"\"$ is $\"\"$ . $\"\"$

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The length of AB is

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$\"\"$ (Distance formula)

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Subtract)

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$\"\"$ (Simplify)

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$\"\"$ ( $\"\"$ ) $\"\"$

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The length of BC is

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$\"\"$ (Distance formula)

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Subtract)

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$\"\"$ (Simplify) $\"\"$

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The length of CA is

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$\"\"$ (Distance formula)

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Subtract)

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$\"\"$ (Evaluate power $\"\"$ )

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$\"\"$ ( $\"\"$ )

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$\"\"$ The perimeter of the $\"\"$ is $\"\"$ units.

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Graph the $\"\"$ .

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$\"\"$

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The area of the triangle is $\"\"$ .

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The graph shows, the perpendicular distance between A and $\"\"$ is the height of the $\"\"$ .

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So, counting squares on the graph height is 4 units and the length of $\"\"$ is 8 units. $\"\"$

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$\"\"$ (Area of triangle)

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Multiply)

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The area of the $\"\"$ is 32 units. $\"\"$

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The perimeter of $\"\"$ is 15.2 units and area is 32 units.