Question

Answer the following questions
0 How many tangents are seen at a point of the circle ?
(ii) Define secant of the circle?
(iii) Ifr, and r, are the radii of two concentric circles and (t, >1). If the chord
of the larger circle AB touches the inter cirde. Find the value of AB​

Answer 1

answer no. 1

The answer is two, and the following theorem proves this fact. Theorem: Exactly two tangents can be drawn from an exterior point to a given circle. We will make use of the fact that ∠PAO ∠ P A O must be 90 degrees.

Answer 2

Answer:

No tangent line can be drawn through a point within a circle, since any such line must be a secant line. However, two tangent lines can be drawn to a circle from a point P outside of the circle.

In geometry, a secant of a curve is a line that intersects the curve at a minimum of two distinct points. The word secant comes from the Latin word secare, meaning to cut. In the case of a circle, a secant will intersect the circle at exactly two points.