Question

For a given circle, while constructing a tangent to it through a point
on it, which property of a tangent is used if you make use of the
centre of the circle ?​

Answer 1

For a given circle, if we make a tangent to it through a point on it, it will look like.

If we make use of centre of circle, the tangent to a circle is always perpendicular to the radius corresponding to the point of tangency.

Answer 2

Answer:

the line drawn from the centre to the point where the tangent touches the circle always make an angle of 90⁰

radius and tangent are always perpendicular to each other