What is a polygon 6th grade math?
A polygon is a closed figure with straight sides. A closed figure starts and ends at the same point.
What is the formula of area of polygon?
The formula to calculate the area of a regular polygon is, Area = (number of sides × length of one side × apothem)/2, where the value of apothem can be calculated using the formula, Apothem = [(length of one side)/{2 ×(tan(180/number of sides))}].
How do you find 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….Plug the apothem and the perimeter into the formula.
- area = 1/2 x 120 x 10√3.
- area = 60 x 10√3.
- area = 600√3.
What is the formula for area of a polygon?
How do you find the area of a polygon?
What is the area of a polygon?
What is area of a polygon?
The formula to calculate the area of a regular polygon is, Area = (number of sides × length of one side × apothem)/2, where the value of apothem can be calculated using the formula, Apothem = [(length of one side)/{2 ×(tan(180/number of sides))}]. Math worksheets and.
How do you find area of a pentagon?
The basic formula for the area of a regular pentagon is, Area of pentagon = 1/2 × p × a; where ‘p’ is the perimeter of the pentagon and ‘a’ is the apothem of a pentagon.
What is the formula of polygon?
Polygon Formula The sum of interior angles of a polygon with “n” sides =180°(n-2) Number of diagonals of a “n-sided” polygon = [n(n-3)]/2. The measure of interior angles of a regular n-sided polygon = [(n-2)180°]/n.
How do you find area of polygon?
What is the formula for area of a regular polygon?
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 to find the area of a polygon?
Area of Polygon Formulas Name of the Polygon Area Formula Triangle 1/2 × base × height Square side 2 Rectangle length × width Pentagon 5/2 × side length × distance from the ce
What is the area of the polygon ABCDEFG?
Solution: The polygon can be split into two trapeziums and a triangle. So, the area of polygon ABCDEFG is given by the sum of the area of trapezium ABCG and CDFG and the area of triangle DEF. Area of trapezium ABCG = (sum of parallel sides) × height/2 = (4 + 7)×3/2 = 33/2 = 16.5 cm 2
What are the basic polygons in geometry?
The basic polygons which are used in geometry are triangle, square, rectangle, pentagon, hexagon, etc. All these polygons have their own area.
How do you find the length of an L shaped polygon?
If it is a rectangle, then you will use A=lw, but if it is a triangle, you will use the formula A=1/2 x b x h. This video explains how to determine the length of the missing sides of an L-shaped polygon from give information and how to determine the area of the polygon.