Question

What is the perimeter of a rectangle with a length of 93 - 4 and a width of 52 + 2?A142 - 2B283 - 4С4522 – 8D4522 – 23 - 8

Answer 1

Given:

The rectangle has the following dimensions

`\begin{gathered} l=9x-4 \\ b=5x+2 \end{gathered}`

Perimeter is the sum of the sides of a shape.

The rectangle has two lengths and two breadths

The perimeter of the rectangle is the sum of the four sides

`\begin{gathered} P=(9x-4)+(9x-4)+(5x+2)+(5x+2) \\ \text{Collecting the like terms,} \\ P=9x+9x+5x+5x-4-4+2+2 \\ P=28x-4 \end{gathered}`

Therefore, the perimeter of the rectangle is 28x - 4.

Option B

Altern