shapes polygon good presentation

1. This Photo by Unknown Author is licensed under CC BY-NC

2. Submitted to: Maam Sidra
Submitted by: Gulshan Asghar
Topic: Polygons
Subject: Math's

3. Area and perimeter
•Area- The number of square units inside closed units.
•Perimeter-The distance around a polygon (the sum of the
length of all sides).

5. Formulas
Shape Area Perimeter
Rectangle A = l × b P = 2(l+b)
Square A = s × s P = 4 × s
Circle A = πr2 P = 2πr
Ellipse A = π×b P = π(a+b)

6. Area of polygons
• The area of a polygon is the region occupied by a
polygon. Polygons can be regular and irregular. The
basic polygons that are used in geometry are
triangle, square, rectangle, pentagon, hexagon, etc.
All these polygons have their own area.

7. Example

8. Perimeter of polygons
•The sum of all the sides of a polygon. If a polygon is a
regular polygon, then the perimeter is given by. Perimeter
of Regular Polygon = (Number of sides) x (Side length of
a polygon) units.

10. Circumference
•The distance around a circle or any curved geometrical
shape. It is the one-dimensional linear measurement of
the boundary across any two-dimensional circular
surface.

11. Area of circle
•The area of a circle is the amount of space enclosed
within the boundary of a circle.
•The region within the boundary of the circle is the
area occupied by the circle.
•It may also be referred to as the total number of
square units inside that circle.

12. Example