QQuestion
Describe the process of drawing one tangent to a circle from an external point.
✓Answer
Construction:
- Draw the given circle with center O and mark the external point P.
- Join OP.
- Find M, the midpoint of OP (use the perpendicular bisector of OP).
- With center M and radius OM, draw a circle having diameter OP.
- Let this circle cut the given circle at T.
- Join PT. PT is the required tangent (if you need only one, use this PT; the second tangent comes from the other intersection).
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