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=-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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