Measurment

Mensuration

learn about

 $\therefore$  Perimetre
 $\therefore$  Perimetre of simple shapes
 $\therefore$  Area 

Perimetre

• The distance is also called Perimetre.

• Perimetre is made up of 2 Greek words 'peri' means around and 'metron' means measurment

Perimetre of square

• Example 1

• Find the perimetre of the following figure

• Solution: We know that ,perimetre=sum of all sides of a figure

• The perimetre of square=(2+2+2+2) or 2X4=8cm

• Perimetre of the square is 8cm

Multiple Select

what is the perimetre of the given shape

• 72cm

• 26cm

• 42cm

• 100cm

Multiple Select

what is the answer

• 104cm

• 180cm

• 1000cm

• 100cm

Area

Area is the part of the surface enclosed by a closed figure.

Area of chessboard

• Count the black squares of the chessboard which is 32 and white squares is also 32.

• so, add 32 and 32 which is equal to 68 (32+32=64) or we can say that multiply 32 with 2 (32*2=64)

Area of chessboard

• Count the black squares of the chessboard which is 32 and white squares is also 32.

• So, add 32 and 32 which is equal to 68 (32+32=64) or we can say that multiply 32 with 2 (32*2=64)

Multiple Select

Find the Area

• 20

• 25

• 15

• 10

Multiple Select

Find the area.

• 18

• 16

• 32

• 15