Question

classifying polygons by attributes independent practice which shape is an irregular polygon? a b c d

Explanation:

Step1: Recall polygon - regularity definition

A regular polygon has all sides and all angles equal. An irregular polygon has sides and/or angles of different measures.

Step2: Analyze Option A

The pink - colored polygon has sides of different lengths and angles of different measures, so it is an irregular polygon.

Step3: Analyze Option B

The purple octagon appears to have all sides and angles equal, so it is a regular polygon.

Step4: Analyze Option C

The blue trapezoid has two parallel sides of different lengths and non - parallel sides of different lengths, but it is a special case of a polygon. However, it is not a regular polygon as its sides and angles are not all equal. But the most irregular - looking one among the options is Option A.

Step5: Analyze Option D

The red rectangle has opposite sides equal and all angles equal to 90 degrees. It is a regular quadrilateral (a special case of a polygon).

Answer:

A. The pink - colored polygon