Square is a device for measuring that consists of two straightedges positioned at right angles to one another. Carpenters and machinists use it to check the accuracy of right angles, as a guide when drawing lines on materials before cutting, and to locate holes.
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C. TRY SQUARE
Square is a device for measuring that consists of two straightedges positioned at right angles to one another. Carpenters and machinists use it to check the accuracy of right angles, as a guide when drawing lines on materials before cutting, and to locate holes.