Steps of construction:
Step 1: Draw a line segment BC of 4.5 cm
Step 2: At B, draw an angle XBC of 45o
Step 3: With center B and radius 5.6 , cm draw an arc which intersects BX at D.
Step 4: Join DC
Step 5: Draw the perpendicular bisector of DC which intersects BD at A.
Step 6: Join AC
Therefore Δ ABC is a required triangle.