Question

12. How many tangents can be drawn to a circle at a point lying on the circle?
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Answer 1

Answer:

one tanget

Step-by-step explanation:

Let P be any point on the circle with center O

OP=radius

Take a line L through P and Q as shown if L is perpendicular to OP

OQ⊥OP because the perpendicular distance is shortest.

Every point except P lies outside the circle and line l must be a tangent. At any given point one and only one tangent can be drawn.