select all the quadrilaterals.

select all the quadrilaterals.
Answer
Explanation:
Step1: Recall quadrilateral definition
A quadrilateral is a polygon with 4 sides.
Step2: Analyze each shape
The first two shapes are triangles (3 - sided), not quadrilaterals. The third shape is a pentagon (5 - sided), not a quadrilateral. The fourth shape has 4 sides, so it is a quadrilateral.
Answer:
The fourth shape (the trapezoid - like shape at the bottom - right) is the only quadrilateral among the given shapes.