Q Sarah is confused about the difference between the perimet

Q. Sarah is confused about the difference between the perimeter and the area of a polygon. Explain the two concepts and the distinction between them.
A. A polygon can be covered with rows of 1 unit by 1 unit squares. Since, area is the number of square units covering a shape, therefore area of the polygon will be the product of number of rows and the number of squares in each row. Area is measured in square units. Perimeter of a polygon is distance around its boundary. Therefore, all the side lengths to are added to calculate the perimeter of the polygon. Perimeter is measured in linear units.

So my question is does it work for all polygons to multiply two sides to get area? Or only specific ones?

Solution

The concept of perimeter is correct. Perimeter is the measure of sum of all sides of a polygon. By adding all side lengths you can find perimeter.

Area is the number of square units covering a shape. But for all shapes we cannot divide it in to 1 unit by 1 unit squares . we can find the area by this way for square, rectangle etc. Consider the case of a triangle or hexogon, we cannot divide that in to 1 unit by 1 unit squares, also number of 1x1 unit squares differ in each row . In such cases we have to use equations to find the area of polygon.

Thanks

:)