What is the perimeter of a regular polygon of n sides?
The straight lines connected to each other through nodes are called sides of polygon and the point where the two sides joins, is called vertex of polygon. A regular polygon has all its sides equal in length and all its angles equal in measure. The perimeter of an n-sides polygon is equal to the sum of all its sides.
What is the perimeter of a 4 sided polygon?
The formula is a + b + c+ d = perimeter. For example, suppose that a quadrilateral has sides with lengths of 1, 5, 3 and 4 inches. The perimeter equals 1 + 5 + 3 + 4 or 13 inches.
What is a 15 sided shape called?
In geometry, a pentadecagon or pentakaidecagon or 15-gon is a fifteen-sided polygon.
How do you find the perimeter of a 5 sided polygon?
Perimeter of a regular pentagon = 8 x 5 = 40 cm. For an irregular polygon, the perimeter is calculating by adding together the individual side lengths. For example, the perimeter of an irregular pentagon whose side lengths are; 5 cm, 4 cm, 6 cm, 10 cm, and 9 cm. = 34 cm.
What is the formula for a regular polygon?
Again, the formula for a regular polygon is 1/2 times the apothem multiplied by the perimeter. The perimeter is just the length of one side multiplied the by the number of sides ( n ); for a regular polygon, n also represents the number of triangles that make up the figure.
How do you calculate the area of a regular polygon?
Know the correct formula. The area of any regular polygon is given by the formula: Area = (a x p)/2, where a is the length of the apothem and p is the perimeter of the polygon. Plug the values of a and p in the formula and get the area.
How do you calculate a polygon?
For a regular polygon, it can be calculated by multiplying the length of one side by the number of sides (n). Determine the apothem. The apothem of a regular polygon is the shortest distance from the center point to one of the sides, creating a right angle. This is a little trickier to calculate than the perimeter.
How do you find the perimeter of an irregular polygon?
Unlike regular polygon, irregular polygon does not holds the same length on each sides. Thus the perimeter of the irregular polygon is calculated by adding the side lengh of each sides. In general, perimeter refers to the distance around the outer side of the polygon.