Question

describe the pattern.
each regular polygon has one more side than the previous figure.
the figures have a total area that is decreasing by 1 square unit.
these are irregular polygons that increase in perimeter with each polygon.
both the side length and the total area are one unit more than the previous figure.

Explanation:

The first figure is a triangle (3 - sided regular polygon), the second is a square (4 - sided regular polygon), and the third is a pentagon (5 - sided regular polygon). So, the pattern is that each regular polygon has one more side than the previous figure. There is no information about area, perimeter, or side - length changes to support the other options.

Answer:

Each regular polygon has one more side than the previous figure.