small bathrooms. i have kind of a similar fear, but I'm really only scared of small bathrooms, or monochromatic ones or ones with labels and directions as to what to do (like airplane or cruise ship bathrooms) I hate flying because of my fear, and always avoid airplane bathrooms.
A rectangular prism is solid 3-dimensional object which has six  faces that are rectangles. It has 12 edges and 8 vertices.
A rectangular prism is a 3-dimensional object with six rectangular faces. All its angles are right angles and opposite faces are equal. In a rectangular prism, the length, width and height may be of different lengths. A rectangular prism is also called a cuboid or rectangular solid. A cube is a special case of a cuboid in which all six faces are squares. The volume of the above rectangular prism would be the product of the length, width and height that is. Volume of rectangular prism = lwh. Surface area of rectangular prism = 2(lw + wh + lh) Worksheet to calculate the volume and surface area of a rectangular prism.