Question: how do you find the perimeter of a plane figure?
Answer: Name. Figure. Formula. Nomenclature. Triangle. Perimeter: P=a+b+c. Area: A=12bh. a,b,c:sides. b:base. h:height. Square. Perimeter: P=4a. Area: A=a2. a:side. Rectangle. Perimeter: P=2b+2h. Area: A=bh. b:base. ...  Usage. To find the area of basic figures. See Also. List here internal links. Web Resources. Write here links for external references.