Answer:
Step 1 : Mark a point O
Step 2 : using compass width 4 cm draw a circle taking O as center
Step 3 : Mark a point A on Circle
Step 4 : Draw a ray Starting A passing through B and intersect circle at B
Step 5 : Take BX = 4 cm on Ray drawn
Step 6 : using compass width Slightly less than BX draw arc on both sides of BX taking B as center
Step 7 : Keeping compass width same m taking X as center draw arcs intersecting arc drawn in step 6 at P & Q
Step 8 : join PQ using ruler intersecting BX at M
Step 9 : taking compass width = BM or MX and taking M as center draw an circle Passing though B & X
