Question

a rectangle is 900 meters long and 600 meters wide. if a strip is added to both side, what is the area and the length of the rectangle.

Explanation:

Step1: Define variables for sides

Let original length $l=9$ m, original width $w=6$ m.

Step2: Calculate new side lengths

New length: $l_{new}=9+5=14$ m
New width: $w_{new}=6+5=11$ m

Step3: Compute new area

Area formula: $A = l_{new} \times w_{new}$
$A=14 \times 11=154$ m²

Answer:

The length of the new rectangle is 14 meters, and its area is 154 square meters.