Definition of 'mental defective'. mental defective (ËmÉntÉl dÉªËfÉktÉªv) 'You must not say anything,' I enunciated slowly, as if speaking to a mental defective. In 1937 two thirds of the magazine's readers favored the sterilization of mental defectives and criminals.
For items that are not circular, such as sculptures, measure the Height, Width, and Depth of the object. 1  Place the âZeroâ end of your measuring tool at the end of your object. 2  Make sure the end of your ruler is flush (in line) with your object.  Adjust your ruler so that it is aligned with your object.
Find the length, width and height Measure the length, width and height of the rectangular prism. Example measurements for a rectangular prism are 5 inches for the length, 2 inches for the width, and 3 inches for the height. Find the area of the base Multiply the width times the length to find the area of the base. The area of the example's base is 10 inches squared.