Question

A rectangular sheet of paper is 12 1 2 cm long and10 2 3 cm wide. Find it’s perimeter?​

Answer 1

Step-by-step explanation:

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.