2. A perimeter is a path that surrounds an area.
The word comes from the Greek peri (around) and meter
(measure). The term may be used either for the path or
its length - it can be thought of as the length of the
outline of a shape. The perimeter of a circular area is
called its circumference.
6
Perimeter = 6+4+6+4
4 = 20 units
4
6
4. Can you tell the Perimeter of these figures:
(Let each side be equal to 2 units)
12 units 12 Units
28 Units 24 Units
5. Perimeter is used in many things such as-
To calculate the amount of wood required for a fence.
To calculate the amount of paint required to paint that fence.
To calculate the length of cloth required to make a dress.
6. 1. Measure a,b and c.
2. Add a,b and c to get the
Perimeter.
3. Got it ? Any questions?
Yes Sir, got it.
7. Area is a quantity that expresses the extent of a
two-dimensional surface or shape, or planar lamina,
in the plane. Area can be understood as the amount of
material with a given thickness that would be necessary
to fashion a model of the shape, or the amount of paint
necessary to cover the surface with a single coat.
7
Area = 7*4
4 = 28 Units