1 /2 inch scale is small enough to allow placement of many scenic units on a manageable size sheet of paper, yet large enough to specify most detail Scale Rule- A tool used for a scale drawing to make the scale accurate Strike- tear down the set, clean the theatre from top to bottom, and return the space to its regular, unadorned, clean, and tidy state; this can also refer to a set or prop being removed from a scene ________- when the audience is on either side of the play area, also known as an ally way Thrust Stage- A theatre space where the audience surrounds the three sides of the play area Turntable- a revolvable platform Apron- The flat extension of the stage that projects from the proscenium towards the audience Arbor- a main shaft or beam Auditorium- the part of a public building where an audience sits, also known as the house Backdrop- a drop thats used to set a scene Backstage- the part of the stage and theatre which is out of the sight of the audience Batten- pipes suspended above a stage used for supporting scenery, drapery, and lighting Offstage- All areas outside the acting area.