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Construct 90 degree and 120 degree angles using compass and rular |
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Answer» n :- To construct an ANGLE of 90° • Draw a line segment AF• Place the POINT of the compass as A and draw an arc that cuts the arm at B• Place the point of the compass as B and draw an arc of radius AB that cuts the arc drawn an in step 2 at C • With the point of the compass at C , draw an arc of radius AB to cut the arc drawn in step 2 at D• With the point of the compass at C . Draw an arc of radius AB NEAR E as shown • With the point of the compass at D . Draw an arc of radius AB near E as shown. • JOIN E and A . The angle FAE = 90° Steps to construct 120° Angle :-• Draw a line segment AC • Place the point of the compass at A and make an arc such that it cuts the line segment AC at B • Place the point of the compass at B and make an arc of 60° at E • Place the point of the compass at B and make an arc of 120° at D• Now, Join A and D. The angle CAD = 120° |
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