Draw a line segment ^@AB^@  and bisect it. Also, bisect one of the equal parts.
 
                Answer: 
            
        - Draw a line segment ^@AB.^@ 
- With center ^@A^@ and radius more than half of ^@AB^@, draw arcs one on each side of ^@AB^@. 
- With center ^@B^@ and same radius, draw arcs cutting previous arcs at ^@P^@ and ^@Q^@ respectively. 
- Join ^@PQ^@ and which intersect ^@AB^@ at ^@C^@. 
- With center ^@A^@ and radius more than half of ^@AC^@, draw arcs on each side of ^@AC^@. 
- With center ^@C^@ and same radius, draw arcs cutting previous arcs at ^@R^@ and ^@S^@ respectively. 
- Join ^@RS^@ and which intersect ^@AC^@ at ^@D^@. 
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