Question

select all shapes with a rectangle as a face.

Explanation:

Step1: Analyze the first shape (blue pyramid - a triangular pyramid)

A triangular pyramid (tetrahedron) has triangular faces. So, it does not have a rectangular face. So this should not be selected.

Step2: Analyze the second shape (yellow prism - a triangular prism)

A triangular prism has two triangular faces and three rectangular faces. So, it has rectangular faces. This should be selected.

Step3: Analyze the third shape (brown cone)

A cone has a circular base and a curved surface. It does not have a rectangular face. So this should not be selected.

Step4: Analyze the fourth shape (pink prism - a rectangular prism)

A rectangular prism (cuboid) has six rectangular faces (in general, some may be squares which are special rectangles). So, it has rectangular faces. This should be selected.

Answer:

The shapes with a rectangle as a face are the yellow triangular prism (second shape) and the pink rectangular prism (fourth shape).