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An L-shaped area can be divided into two rectangles. The total area is the sum of the areas of the two rectangles.
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Density = mass/volumeThe unit weight of steel is 7850 kg/m3volume of bar = (πd2/4)*Lhence mass = ((πd2/4)*L)*7850= ((3.14 *d2/4)*1)*7850 for unit length= 0.785*d2*7850= 6162.25 d2 if d is in metersor d2 /162 if d is in mm.By putting the value of diameter of rod, you can calculate the unit weight of any size tmt bar.
Vertices - 10 edges - 18 faces - 8
its a L shaped scale or ruler used to measure perpendicularity, alignment and parallelness among certain intruments. Its used almost daily for calibrating the positions of instruments to make sure they are straight and thus carry out perfect job execution.