Construct two concentric circles of radii 3cm and 7cm. Draw two tangents to the smaller circle from a point P which lies on the bigger circle.
Step 1: Draw two concentric circles with focus O and radii 3cm and 7cm separately.
Step 2: Then, Join OP and cut up it at O′, so PO′ = O′O
Step 3: Now, Construct circle with focus O′ and sweep O′O
Step 4: and at end Join PA and PB