Using a protractor, draw each of the following angles.

-400°


The given angle is negative


Adding or subtracting 360° from a particular angle does’nt changes its position.


Therefore, Angle can also be written as=-400° + 360° = -40°


The angle is still negative, so we will further add 360° to it.


Therefore, Angle can also be written as=-40° + 360°=320°



• Draw a straight line AB.


• Place a dot at B. This dot represents the vertex of the angle.


• Place the centre of the protractor at B and the baseline of the protractor along the arm BA.


• Find 320° on the scale and mark a small dot at the edge of the protractor.


• Join the vertex B to the small dot with a ruler to form the second arm, BC, of the angle.


• Mark the angle with a small arc as shown below.



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