Technology - Tools
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What is this called and what is its function?
A Retractable Tape! Meausures up to one, two (more common) or three metres.
What does a metal ruler do?
Two or three decimetres long. It measures in millimetres and sometime in other units too.
This tool measures and checks right angles, drawing perpendicular lines, or as a guide for marking and measuring.
A Metal Set Square
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