CBSE Class 6 Answered
Steps of construction:
(i) Use a ruler. Draw a horizontal line. Use the line as one arm of the angle.
(ii) Place the protractor on the arm. One end of the arm is at the centre of the protractor. The arm lines up with the base line
of the protractor. Start at 0° on the arm along the base line.
Count around the protractor until you reach 145°. Make a mark at 145°.
(iii) Remove the protractor. Draw a line to join the end of the
arm at the centre of the protractor with the mark at 145°.
Label the angle with its measure.