Steps of construction :
(1) Draw a circle with center O and radius 4 cm.
(2) Take a point P, 6 cm a part from its center and meet OP.
(3) Bisect OP at point M.
(4) With M as center and MP as radius, draw a circle that intersects the given circle at A and B.
(5) Join PA and PB.
Hence PA and PB are the required tangents.
