Question

select all the pentagons.

Explanation:

Step1: Recall pentagon definition

A pentagon is a polygon with 5 sides.

Step2: Analyze each shape

• The red - shaped figure has 5 sides, so it is a pentagon.
• The green - shaped figure has 5 sides, so it is a pentagon.
• The purple - shaped figure has 6 sides, so it is not a pentagon.
• The blue - shaped figure has 4 sides, so it is not a pentagon.

Answer:

The red - shaped figure and the green - shaped figure are pentagons.