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 triangular bases of the triangular prism will have the same dimensions, so it doesn't matter which triangle you use. Now, find the base and the height of the triangle by locating the length of one of the sides of the triangle as well as the length of a line perpendicular to that first line. If you're working with a right triangle, then great -- you can just take the length of the two sides.