The Chamberlain garage door opener replacement safety sensors (2-Pack) help make sure your garage remains safe. The sensors project an invisible light beam across the inside of the garage door to ensure that if anything is coming in or going out, that the door automatically reverses before hitting anything or anyone. 1  Replaces defective or damaged sensors.
A traditional triangular prism is a solid figure which is made up of two triangular bases and three rectangular faces. The two triangular bases face each other and are joined together with the help of three rectangles. Triangular prism is the most useful prism in geometry as well as in optical physics.
The net of a triangular prism consists of two triangles and three rectangles. The triangles are the bases of the prism and the rectangles are the lateral faces. The net of a rectangular prism consists of six rectangles. Both the bases and the lateral faces of this shape are rectangles.