Final answer:
An object in a classroom that has no lines of symmetry is a concave or convex mirror. These types of mirrors have a curved surface that distorts the reflection and creates an asymmetrical image. They are commonly used in science laboratories and art studios for experiments and visual effects.
Step-by-step explanation:
An object in a classroom that has no lines of symmetry is a concave or convex mirror. These types of mirrors do not have any lines of symmetry because they have a curved surface that distorts the reflection. Unlike a plane mirror, which has a flat surface and produces a clear reflection, concave and convex mirrors have a curved surface that causes the reflected image to be distorted and asymmetrical. Examples of concave and convex mirrors in a classroom can be found in science laboratories and art studios, where they are used for experiments and creating unique visual effects.