Question

Determine the perimeter of the rectangle. L=3/4cm, W=7/8cm

Answer 1

4 and 1/4

Explanation:

3/4 =6/8 and 6/8 plus 6/8 plus 7/8 plus 7/8 = 26/8 = 4 and 1/4

Answer 2

The perimeter of the rectangle with L=
`(3)/(4)` cm and W
`= (7)/(8)` cm is 3.25 cm or
`(13)/(4)` cm

Solution:

Given, the length of the rectangle is L =
`(3)/(4)` cm

And, the width of the rectangle is W =
`= (7)/(8)` cm We have to find the perimeter of the given rectangle.

We know that, perimeter of a rectangle is given by

P = 2( L + W )

So, let us substitute the above given values in the formula of perimeter of a rectangle.

`P=2\left((3)/(4)+(7)/(8)\right)`

Multiplying 2 on numerator and denominator, to get both denominators equal.

`\begin{array}{l}{\mathrm{P}=2\left((2 * 3)/(2 * 4)+(7)/(8)\right)} \\\\ {=2\left((6)/(8)+(7)/(8)\right)} \\\\ {=2\left((6+7)/(8)\right)} \\\\ {=2 * (13)/(8)=(13)/(4)=3.25}\end{array}`

Hence the perimeter of the rectangle with L=
`(3)/(4)` cm and W
`= (7)/(8)` cm is 3.25 cm or
`(13)/(4)` cm