Question

classifying polygons by attributes independent practice which shape is a regular quadrilateral?

Explanation:

Step1: Recall definition of regular quadrilateral

A regular quadrilateral has all - sides equal and all - angles equal.

Step2: Analyze option A

The trapezoid in option A has non - equal sides and non - equal angles.

Step3: Analyze option B

A square (the blue shape in option B) has 4 equal sides and 4 right (equal) angles. It is a regular quadrilateral.

Step4: Analyze option C

The rectangle in option C has non - equal adjacent sides (in general), though all angles are 90 degrees.

Step5: Analyze option D

The shape in option D is a pentagon, not a quadrilateral.

Answer:

B. The blue square - shaped figure