Isabella has three rectangular cards that are 4 inches by 5 inches. How can she arrange the cards,
without overlapping, to make one larger polygon with
the smallest possible perimeter? How will the area of the
polygon compare to the combined area of the three cards?

28

step-by-step explanation:

because that's the answer

what shape is

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.