Question

A rectangular sheet of paper is 5*5/2cm long and 3*1/2 cm wide. Find its perimeter.

Answer 1

length of rectangular sheet of paper = $5\frac{5}{2}$ cm
width of rectangular sheet of paper = $3\frac{1}{2}$ cm

we know, $\textbf{perimeter of rectangle=2(length +width )}$

so, perimeter of rectangular sheet of paper = 2( length of rectangular sheet of paper + width of rectangular sheet of paper)
$=2\left[\begin{array}{c}5\frac{5}{2}+3\frac{1}{2}\end{array}\right]\\=2\left[\begin{array}{c}\frac{15}{2}+\frac{7}{2}\end{array}\right]\\=2\times\frac{22}{2}\\=22cm$

Answer 2

Hi ,

Dimensions of the rectangular sheet

of paper :

Length ( l ) = 5 5/2 = 5 + 5/2 = 5 + 2.5

L = 7.5 cm

Breadth ( b ) = 3½ = 3 + 1/2 = 3.5 cm

Perimeter of the sheet = P

P = 2 ( l + b )

P = 2 ( 7.5 + 3.5 )

P = 2 × 11

P = 22 cm

I hope this helps you.

: )