Question

A rectangular table is 2 1 m long and 1 2 m wide. Find its perimeter.

Answer 1

Answer:

Let ABCD be a rectangular sheet whose length and width is given 12

2

1

cm and 10

3

2

cm respectively.

Then, We know that

The perimeter of a rectangle =2(length + width)

=2(12

2

1

+10

3

2

)

=2(

2

25

+

3

32

)

=2(

6

75+64

)

=2(

6

139

)

=2×

6

139

=

3

139

cm

Or

=46

3

1

cm.

Answer 2

$\cal\huge\red{Solution:} \\ \\ \Rightarrow\text{Length of table = 21 m} \\ \Rightarrow\text{Breadth of table = 12 m} \\ \\ \leadsto\text{We know that :} \\ \leadsto\text{Perimeter = 2 × (L + B)} \\ \leadsto\text{Perimeter = 2 × (21 + 12)} \\ \leadsto\text{Perimeter = 2 × 33} \\ \\ \Rightarrow\text{Therefore, Perimeter = 66 metres.} \\ \\ \text\purple{Hope it will help you...}$