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Find step-by-step answers to all the questions in the NCERT Class 10 Maths textbook on circles. Learn about tangents, secants, radii, chords, and related concepts with examples and diagrams.
- Circles for Class 10
The Class 10 Maths Chapter 10, ‘Circles’, covers concepts...
- Circles for Class 10
- Introduction
- Line and A Circle
- Tangent
- Number of Tangents from A Point to Circle
- Length of A Tangent
- Theorem Related to Length of Tangents from The External Points
A circle is a set of all points in a plane at a fixed distance from a fixed point in a plane. The fixed point is called the centre of the circle. The fixed distance is called the radius of the circle.
In Fig. (i), the line PQ and the circle have no common point. In this case, PQ is called a non-intersecting line with respect to the circle. In Fig. (ii), there are two common points A and B that the line PQ and the circle have. In this case, we call the line PQ a secant of the circle. In Fig. (iii), there is only one point A which is common to the...
A tangent to a circle is a straight line which touches the circle at only one point. The point where the tangent touches the circle is called point of contact of the tangent to the circle. A tangent to a circle is a special case of a secant, when the two ends points of its corresponding chord coincides. Theorem: Tangent at any point on a circle is ...
(i) No tangent can be drawn from the point lying inside the circle, as shown in fig. (i) (ii) One and only one tangent can be drawn from a point lying on the circle, as shown in fig. (ii) (iii) Only two tangents can be drawn from an exterior point to a circle, as shown in fig. (iii)
The length of the segment of a tangent from an external point to the point of contact with the circle is called the length of the tangent In the given figure, T1 and T2 are the points of contact of the tangents PT1 and PT2respectively from the external point P.
The lengths of tangents drawn from an external point to a circle are equal. i.e., Here, PQ and PR are the two tangents drawn from P to the circle
- 10
- Maths
Sep 8, 2019 · Get Free NCERT Solutions for Class 10 Maths Chapter 10 Ex 10.2 PDF. Circles Class 10 Maths NCERT Solutions are extremely helpful while doing your homework or while preparing for the exam. Exercise 10.2 Class 10 Maths NCERT Solutions were prepared according to CBSE marking scheme and guidelines.
Learn about circles, tangents and secants with NCERT solutions, examples and videos for Class 10 Maths. Choose from serial order wise or concept wise mode of learning.
Learn about the concept of circles, tangents, secants, and parallel tangents with notes, theorems, and examples for Class 10 Maths. Download PDF, watch videos, and access NCERT solutions for Chapter 10 Circles.
CIRCLES 10. 10.1 Introduction. You have studied in Class IX that a circle is a collection of all points in a plane which are at a constant distance (radius) from a fixed point (centre). You have also studied various terms related to a circle like chord, segment, sector, arc etc.
1 day ago · You can access free PDF downloads of NCERT Solutions for Maths Chapter 10 Circles class 10. These solutions have been updated to align with the current Syllabus by master teachers.
