About RS Aggarwal Solutions Class 9 Maths Chapter 12 Circles
In Class 9 CBSE mathematics, one of the important chapters is "Circles." This chapter focuses on the properties and concepts related to circles and their components.
Here is an overview of the key concepts covered in the "Circles" chapter:
Circle: A circle is a closed curve consisting of all points in a plane that are equidistant from a fixed point called the center. The distance from the center to any point on the circle is called the radius, and a line segment joining any two points on the circle is called a chord. Check out all the solutions of RS Aggarwal for class 9 Maths and to get the best Home tuition for class 9 Maths find the tutors.
Arcs and Chords: An arc is a part of the circumference of a circle. A chord is a line segment with both endpoints on the circle.
Angles in a Circle:
Central Angle: An angle whose vertex is at the center of the circle.
Inscribed Angle: An angle whose vertex is on the circle and whose arms intersect the circle.
Angle Subtended by an Arc: The angle formed by the two lines drawn from the endpoints of an arc to the center of the circle.
Tangent to a Circle: A tangent is a line that intersects the circle at exactly one point, known as the point of tangency.
Properties of Tangents:
A tangent is perpendicular to the radius drawn to the point of tangency.
The lengths of tangents drawn from an external point to a circle are equal.
Exercise of RS Aggarwal Class 9 Chapter 12 Circles
Chapter 12 Circles Exercise 12A
Chapter 12 Circles Exercise 12B
Chapter 12 Circles Exercise 12C
Chapter 12 Multiple Choice Questions (MCQs)