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Read Tangents To A Circle of NCERT Class 10 Mathematics
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NCERT Class 10 Mathematics Tangents To A Circle PDF
Tangent to a circle is a line which intersects the circle in exactly one point. At a point of a circle there is one and only one tangent.
The tangent at any point of a circle is perpendicular to the radius through the point of contact.
The lengths of tangents drawn from an external point to a circle are equal.
Centre of the circle lies on the bisector of the angle between the two tangents.
Theorem 1:- If two chords of a circle intersect inside or outside the circle, then the rectangle formed by the two parts of one chord is equal in area to the rectangle formed by the two parts of the other.
Given:- Two chords AB and CD of a circle such that they intersect each other at a point P lying inside in figure (i) or outside in figure (ii) of the circle.
To prove: - PA.PB = PC.PD
Construction:-AC and BD are joine P.
Proof:-
Please refer to attached file for CBSE Class 10 Maths Tangents to a circle
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NCERT Book for Class 10 Mathematics Tangents To A Circle
Chapter Textbook PDF for Class 10 Mathematics
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English Medium NCERT Textbooks for Class 10
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