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Tangent
Definition Of Tangent
A tangent to a curve at a point is a straight line that touches the curve at that point.
Examples of Tangent
The line AB is a tangent to the circle at P.
A tangent line to a circle contains exactly one point of the circle
A tangent to a circle is at right angles to the radius of the circle at its point of contact
Video Examples: Tangents and Circles
Solved Example on Tangent
Ques: Find the number of tangents that can be drawn from a point inside a circle to the circle.
Choices:
A. 1
B. 2
C. infinite
D. 0
Correct Answer: D
Solution:
Step 1: No tangent can be drawn from a point inside a circle to it.