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Used also as a synonym for "boundary," the perimeter in geometry is the total distance around the outside of a polygon, a 2-dimensional shape of 3 or more sides and angles. Finding the perimeter of a polygon involves measuring 1 or more of the sides and the ability to add or multiply. Here are the steps to find the perimeter of a polygon
A polygon with all sides the same length and all angles the same measure is called a regular polygon. Squares and equilateral triangles are regular polygons, as are the pentagon in the Chrysler logo and the octagon in a stop sign. If the sides are the same length, find the length of one side and multiply by the number of sides to find the perimeter.
oh ok, thank you!
If not all the sides of a polygon are the same length, some of the sides may still be. Some examples of this are isosceles triangles and isosceles trapezoids, where 2 of the sides are the same length, and parallelograms and rectangles, which have 2 longer sides of equal length and 2 shorter sides of equal length. For isosceles triangles and trapezoids, find the length of 1 of the equal sides, multiply it by 2 and then find the lengths of the remaining side(s), and add their lengths to the total lengths of the equal sides to find the perimeter.For parallelograms and triangles, find the length of one of the longer sides and one of the lengths of the shorter sides. Multiply the length of the longer side by 2 and the length of the shorter side by 2; then add the products together to find the perimeter. (This method can also be used for squares and rhombuses, which, along with rectangles, are special cases of parallelograms.)
alright thank you!