What is the formula for perimeter of a polygon?
We know that the perimeter of a regular polygon is calculated by the formula, Perimeter = (number of sides) × (length of one side). Thus, if the length of the side is increased, the value of the perimeter also increases.
What is the formula to find the area of a polygon?
To find the area of a regular polygon, all you have to do is follow this simple formula: area = 1/2 x perimeter x apothem. Here is what it means: Perimeter = the sum of the lengths of all the sides. Apothem = a segment that joins the polygon’s center to the midpoint of any side that is perpendicular to that side.
How do you find the area and perimeter of a regular pentagon?
Using a Formula. Area of a regular pentagon = pa/2, where p = the perimeter and a = the apothem. If you don’t know the perimeter, calculate it from the side length: p = 5s, where s is the side length.
How do you find the perimeter of a polygon calculator?
Perimeter of Regular Polygon = (Number of sides) x (Side length of a polygon) units. Perimeter = 5 (4) = 20 cm.
What describes the area of a polygon?
What is the Area of a Polygon? In geometry, the area is defined as the region occupied inside the boundary of a two-dimensional figure. Therefore, the area of a polygon is the total space or region bound by the sides of a polygon. The standard units for the measurement of the area are square meters (m2).
What is the area of regular polygon?
Once you have mastered these new definitions, the formula for the area of a regular polygon is an easy one. The area of a regular polygon is one-half the product of its apothem and its perimeter. Often the formula is written like this: Area=1/2(ap), where a denotes the length of an apothem, and p denotes the perimeter.
How do you find the area of a 5 sided polygon?
The basic formula that is used to find the area of a pentagon is, Area = 5/2 × s × a; where ‘s’ is the length of the side of the pentagon and ‘a’ is the apothem of a pentagon.
How do I find the circumference of a polygon?
Multiply the side length by the number of sides to get the perimeter. The formula for finding the perimeter of a regular polygon is just the number of sides x the length of any side. Once you’ve multiplied those 2 numbers together, you’ve found the perimeter of the polygon!
How do you find the perimeter of an irregular polygon?
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.
How do you find the area of a polygon with 9 sides?
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.
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.
What is the equation of 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.
What is the perimeter of an irregular polygon?
A polygon is the two dimensional object. 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.
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.