PPT: Mensuration | Mathematics (Maths) Class 8 PDF Download

 Page 1


M e n s u r a t i o n
Page 2


M e n s u r a t i o n
WHAT IS IT?
A R E A
Area is the measure of the space covered by a 2D
shape. Like the shaded area in the square.
This method helps calculate the area of complex
figures accurately.
Polygons like trapeziums, triangles, and rhombuses
can be divided into simpler shapes for easier
calculations.
Standard Unit: Square units (e.g., cm², m²).
Page 3


M e n s u r a t i o n
WHAT IS IT?
A R E A
Area is the measure of the space covered by a 2D
shape. Like the shaded area in the square.
This method helps calculate the area of complex
figures accurately.
Polygons like trapeziums, triangles, and rhombuses
can be divided into simpler shapes for easier
calculations.
Standard Unit: Square units (e.g., cm², m²).
P E R I M E T E R
WHAT IS IT?
The perimeter of a shape is defined as the total
distance around the shape. 
The perimeter of different figures can be equal in
measure depending upon the dimensions. 
It is the length of the outline or boundary of any two-
dimensional geometric shape. 
Page 4


M e n s u r a t i o n
WHAT IS IT?
A R E A
Area is the measure of the space covered by a 2D
shape. Like the shaded area in the square.
This method helps calculate the area of complex
figures accurately.
Polygons like trapeziums, triangles, and rhombuses
can be divided into simpler shapes for easier
calculations.
Standard Unit: Square units (e.g., cm², m²).
P E R I M E T E R
WHAT IS IT?
The perimeter of a shape is defined as the total
distance around the shape. 
The perimeter of different figures can be equal in
measure depending upon the dimensions. 
It is the length of the outline or boundary of any two-
dimensional geometric shape. 
 AREA & PERIMETER FORMULAS
FOR COMMON SHAPES
F O R M U L A S
Page 5


M e n s u r a t i o n
WHAT IS IT?
A R E A
Area is the measure of the space covered by a 2D
shape. Like the shaded area in the square.
This method helps calculate the area of complex
figures accurately.
Polygons like trapeziums, triangles, and rhombuses
can be divided into simpler shapes for easier
calculations.
Standard Unit: Square units (e.g., cm², m²).
P E R I M E T E R
WHAT IS IT?
The perimeter of a shape is defined as the total
distance around the shape. 
The perimeter of different figures can be equal in
measure depending upon the dimensions. 
It is the length of the outline or boundary of any two-
dimensional geometric shape. 
 AREA & PERIMETER FORMULAS
FOR COMMON SHAPES
F O R M U L A S
S Q U A R E
A R E A :
P E R I M E T E R :
S X S
S + S + S + S
S
S
Q) FIND THE AREA OF A SQUARE
WITH SIDE 4 CM