Definition of 'fail-safe'. Word Frequency. fail-safe also failsafe. adjective. Something that is fail-safe is designed or made in such a way that nothing dangerous can happen if a part of it goes wrong. The camera has a built-in failsafe device which prevents it from working if the right signals aren't received.
A cuboid is a 3D shape. Cuboids have six faces, which form a convex polyhedron. Simply speaking, cuboids are made from 6 rectangles, which are placed at right angles. A cuboid that uses all square faces is a cube; if the faces are rectangles, other than squares, it looks like a shoe box. Properties of a Cuboid are:
First and fore most a Trapezoid is a quadrilateral which is a 4 sided plane shape. 1  It has 4 lines. 2  It is a closed shape. 3  Two of the lines are parallel.  It is a simple quadrilateral - meaning the sum of it's angles is 360 1  degrees. A Trapezoid is a Trapezoid and cannot be named anything else.