Find the best tutors and institutes for Class 9 Tuition
Learn Definitions
Welcome to CBSE Class 9 Mathematics! The chapter on Circles is an incredibly important foundation for advanced geometry. In simple terms, a circle is a collection of all points in a two-dimensional plane that are at a constant distance from a fixed central point. From the wheels on a bicycle to coins and planetary orbits, this universal shape is everywhere. However, before diving into complex geometric proofs and theorems, it is absolutely essential to understand the specific vocabulary used to describe the different parts of a circle.
To master this chapter, you must be familiar with a few core definitions. The fixed point in the middle is called the center, and the fixed distance from the center to any point on the boundary is the radius. A line segment joining any two points on the circle's boundary is known as a chord. The longest chord, which passes directly through the center, is the diameter (which is exactly twice the length of the radius). A continuous piece of the circle's outer boundary is called an arc. Moving to the regions inside the circle, the area enclosed by an arc and two radii is called a sector (think of a slice of pizza), while the region bounded by an arc and a chord is known as a segment.
Take a close look at the diagram above, which visually separates these key definitions to make them easy to remember. On the left side, you can see how the center anchors the circle, with the green radius extending outward and the red dashed diameter cutting all the way across through the center. Notice how the purple chord connects two points but doesn't pass through the middle. On the right side, the diagram highlights regions: the yellow sector looks like a slice of pie formed by radii, while the teal segment is the area sliced off by a chord. The thick pink curve at the bottom emphasizes an arc. In your Class 9 exams, you will be frequently asked to identify these parts to prove congruence between triangles formed within circles or to calculate subtended angles. Visualizing these parts ensures you never confuse a sector with a segment during a test!
Are you finding geometry challenging? You are not alone! If you need step-by-step help mastering circle theorems, algebraic concepts, or any other Class 9 Mathematics topic, UrbanPro is here to help. You can easily find highly experienced, verified CBSE Class 9 Math tutors on the UrbanPro platform. Whether you prefer personalized online tuition from the comfort of your home or face-to-face local offline classes, UrbanPro connects you with top-rated educators who will strengthen your fundamentals and help you achieve top marks in your exams!
Other Concepts in Circles
Other Concept Videos for Definitions
Top Tutors who teach Definitions
**Teaching Methodology:** My approach to teaching Mathematics and Science is personalized and interactive. I focus on understanding each student's unique learning style and adapt my methods accordingly. My goal is to make Maths and Science relatable and engaging, using real-life examples and practical applications to enhance understanding.I try to develop self thinking on problem and pushing them to solve by self. **Key Skills:** - Strong grasp of Mathematics concepts across various levels - Ability to simplify complex topics for better understanding - Excellent communication and motivational skills - Patient and supportive, ensuring a comfortable learning environment - Regular progress assessments and constructive feedback **Services Offered:** - One-on-one personalized tutoring sessions - Homework and assignment assistance - Exam preparation and revision classes - Online and in-person tutoring options - Flexible scheduling to accommodate student needs **Achievements:** - Helped students improve their grades by an average of [25%] - Successfully prepared students for competitive exams with [JEE,NEET,IMO] - Received positive feedback and high ratings from students and parents Interested in improving your Maths AND Science skills? Contact me today to schedule a session and take the first step towards mastering Mathematics and Science!
Teaching since last 20 years
Amit ji is a fantastic teacher. My daughter is very happy with her studies. He is exactly what she needed, a teacher with deep understanding of his subject and a very good communicator. If there is one gripe that I may mention, it's time. We would love to have more classes to cover Physics, but he is completely booked for his time. I would highly recommend him. Thank you.
I gained extensive experience in delivering high-quality education following the CBSE/ICSE curriculum. My key responsibilities included: Classroom Teaching: Effectively taught Mathematics, Physics and Chemistry to students of classes IX, ensuring alignment with the CBSE/ ICSE syllabus and fostering a deep understanding of key concepts. Curriculum Planning: Designed and implemented lesson plans that adhered to the CBSE guidelines, ensuring comprehensive coverage of topics while keeping in mind the varying learning needs of students. Student Assessment: Created and administered tests, quizzes, and assignments in accordance with the CBSE exam pattern. Monitored student performance and provided constructive feedback to facilitate continuous improvement. Interactive Learning: Encouraged an interactive classroom environment, integrating various teaching aids such as multimedia presentations, hands-on activities, and group discussions to enhance student engagement and understanding. Preparation for Board Exams: Provided focused support for students appearing for their CBSE/ICSE board exams by conducting regular revision sessions, mock tests, and personalized guidance to help them excel. Parental Communication: Maintained regular communication with parents regarding student progress, attendance, and overall development. Organized parent-teacher meetings to ensure a collaborative approach to student growth. Co-curricular Involvement: Actively participated in school events, projects, and extracurricular activities, fostering holistic development among students. Professional Development: Engaged in continuous professional development through workshops and CBSE training programs to stay updated with the latest educational practices and policies.
I teach Math and Science to 8th-12th standard students and have been teaching for more than 10 years. Batch of 2 Students: I conduct these small batches with a pair of students of the same class and the education board (I cover all popular boards CBSE, ICSE, IGCSE etc.). Works for those students/parents who are looking for individual attention for their kids but still want it to be a little affordable. *3 classes per week (So 12 a month) *Maths and Science (Also English Grammar and Literature) *Fee Rs. 4500/- per month/12 classes. Batch of 6 Students: I conduct these small batches with 5-6 students of the same class and the education board (I cover all popular boards CBSE, ICSE, IGCSE etc.). *4 classes per week (So 16 a month) *Maths and Science *Fee Rs. 4000/- per month/16 classes. I will start the classes immediately once the first kid enrolls. ------------------------------------------------------------------------------- Individual/Private/One-to-One classes: I conduct these one to one classes for those students willing to have one to one setup (I cover all popular boards CBSE, ICSE, IGCSE etc.). *3 classes per week (So 12 a month) *Maths and Science (Also English Grammar and Literature) *Fee Rs. 7000/- per month/12 classes. ------------------------------------------------------------------------------- I took classes and batches in different institutions.
The teacher is very good. He understands the students strength and weakness and decides the pace of learning. He also tries to make the student comfortable and at ease with his/her capacity and then works on the child. It is not just Math he works on but the child's confidence and comfort with the subject. Highly recommended.
I am a teacher and I have been teaching for the past 20 years. l am presently teaching in a school. l have done MSc in Maths and have taught many students.
Thanks Ma'am for supporting Anvi in the subject. She has been getting more comfortable and relaxed with the theory and concepts in mathematics. Her fear is waning away and she shows an increased interest in the subject. I will definitely recommend you to all prospective parents. Thanks again!
Find more Tutor for Definitions in your City
- Delhi Mathematics Tutors
- Bangalore Mathematics Tutors
- Hyderabad Mathematics Tutors
- Mumbai Mathematics Tutors
- Chennai Mathematics Tutors
- Kolkata Mathematics Tutors
- Gurgaon Mathematics Tutors
- Pune Mathematics Tutors
- Noida Mathematics Tutors
- Ghaziabad Mathematics Tutors
- Lucknow Mathematics Tutors
- Jaipur Mathematics Tutors
FAQ
What is the meaning of Definitions?
It refers to a specific mathematical method or property in Circles used to solve problems involving Definitions.
Why is Definitions important for CBSE - Class 9 exams?
This concept is crucial for the exams as questions related to Circles and specifically Definitions are very common. It helps secure marks in the section effectively.
Is Definitions part of the latest NCERT syllabus?
Yes, Definitions is an integral part of the CBSE - Class 9 NCERT Mathematics syllabus. It is a key topic covered in the Circles chapter.
What are common mistakes students make with Definitions?
Students often miss the minute details or fundamental definitions of Definitions. Regular revision and practice are needed to master the nuances.
How should I approach learning Definitions?
Start by understanding the formulas and logic, then practice applying them to simple problems. Solve the examples given in the NCERT textbook before moving to exercise problems.
How can UrbanPro help me understand Definitions better?
UrbanPro connects you with experienced Mathematics tutors who can explain Definitions with simple examples. You also get access to doubt-clearing sessions and mock tests for better preparation.