Which description defines the prism square? O A. Consists of a round box with three small slits at H, I and J. Two mirro
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Which description defines the prism square? O A. Consists of a round box with three small slits at H, I and J. Two mirro
Which description defines the prism square? O A. Consists of a round box with three small slits at H, I and J. Two mirrors (A and B) are set at an angle of 45° to each other O B. Is another hand instrument that is also used to determine or set out right angles OC. Is used to determine the natural slope of the ground or the slope along lines of measurements. It is therefore very handy to use in tape measurements
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