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CBSE Class 7 Answered

Draw a line and mark points A and B on it such that AB =6.5cm  Mark a point O on AB such that AO =2.5cm Draw a perpendicular to AB at O. Measure the angles formed by the perpendicular with AB
Asked by abdurrahman273 | 03 Jan, 2019, 07:13: PM
answered-by-expert Expert Answer
Step-1 : Using a scale, draw a line AB of length 6.5 cm. Mark a point O on line AB so that AO=2.5 cm
Step-2 : Using a compass, draw arcs on the line AB using O as centre. Let the arcs be on both sides of point O.
                 Let the arcs be of equal length.  Let the arcs meet line AB at p and q as shown in figure.
              Then using p and q as centers, draw arc of equal length above line AB so that the arcs will meet at r as shown in figure.
              Through the meeting point of arcs r, draw a line towards the point O. This line is the required perpendicular to line AB.
 
Perpendicular line makes 90° angles with line AB
Answered by Thiyagarajan K | 11 Jan, 2019, 12:42: PM

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