What is the perimeter of triangle ABC ?11 units14 units16 units20 units

[tex]\text {AC = } 6 \text { units}[/tex]

[tex]\text {AB = } \sqrt{(5-1)^2 + (2+1)^2} = 5 \text { units}[/tex]

[tex]\text {BC = } \sqrt{(5-1)^2 + (5-2)^2} = 5 \text { units}[/tex]

[tex]\text {Perimeter = } 6 + 5 + 5 = 16 \text { units}[/tex]


Answer: Perimeter = 16 units.