If someone can please help me i keep re reading my mathbook I need help i tried I'm unsure:

Is there a relationship between area and perimeter? (My answer : yes they both are meadurements one reads the outside and one inside.)

Does changing one mean the other one always
changes? (My answer i thino it does because the more perimeter more area but im unsure and how to show example )
Use examples to support your ideas. Label the entry “Area and Perimeter”

Not really. Draw a figure with any number of sides. Except for a triangle, it can be squashed in various ways, making the area anything from almost zero to a maximum when the figure is a regular polygon.

That is why structures are usually based on triangular frameworks -- the triangle is rigid, but the other polygons can have their joints deformed under stress.