NCERT Solutions for Class 9 Maths Chapter 10 Circles Ex 10.1 are part of NCERT Solutions for Class 9 Maths. Here we have given NCERT Solutions for Class 9 Maths Chapter 10 Circles Ex 10.1.
- Circles Class 9 Ex 10.1
- Circles Class 9 Ex 10.2
- Circles Class 9 Ex 10.3
- Circles Class 9 Ex 10.4
- Circles Class 9 Ex 10.5
- Circles Class 9 Ex 10.6
Board | CBSE |
Textbook | NCERT |
Class | Class 9 |
Subject | Maths |
Chapter | Chapter 10 |
Chapter Name | Quadrilaterals |
Exercise | Ex 10.1 |
Number of Questions Solved | 2 |
Category | NCERT Solutions |
NCERT Solutions for Class 9 Maths Chapter 10 Circles Ex 10.1
Ex 10.1 Class 9 Maths Question 1.
Fill in the blanks.
- The center of a circle lies in……………… of the circle. (exterior/interior)
- A point, whose distance from the center of a circle is greater than its radius lies in…………… of the circle, (exterior/interior)
- The longest chord of a circle is a…………………… of the circle.
- An arc is a…………… when its ends are the ends of a diameter.
- Segment of a circle is the region between an arc and………………….. of the circle.
- A circle divides the plane, on which it lies, in…………………… parts.
Solution:
- The center of a circle lies in interior of the circle.
- A point, whose distance from the center of a circle is greater than its radius lies in exterior of the circle.
- The longest chord of a circle is a diameter of the circle.
- An arc is a semi-circle when its ends are the ends of a diameter.
- Segment of a circle is the region between an arc and chord of the circle.
- A circle divides the plane, on which it lies, in three parts.
Ex 10.1 Class 9 Maths Question 2.
Write True of False. Give reasons for your answers.
- Line segment joining the center to any point on the circle is a radius of the circle.
- A circle has only finite number of equal chords.
- If a circle is divided into three equal arcs, each is a major arc.
- A chord of a circle, which is twice as long as its radius, is a diameter of the circle.
- Sector is the region between the chord and its corresponding arc.
- A circle is a plane figure.
Solution.
- True. Because all points are equidistant from the center of the circle.
- False. Because the circle has infinitely many equal chords.
- False. Because all three arcs are equal, so there is no difference between the
major and minor arcs. - True. By the definition of diameter that diameter is twice the radius.
- False. Because the sector is the region between two radii and an arc.
- True. Because the circle is a part of the plane figure.
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