construction for 90 degree by using protector it must've of 5 steps or 5
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construction for 90 degree by using protector it must've of 5 steps or 5
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2) Take any point on AB
3) put the protractor on it and super impose the middle line on the point
4) Point the 90 Degree with a sharp pencil
5) Join the point of 90 degrees with the point on AB and name the line as PQ