Welcome to Clip from Spiral logo

Interactive video lesson plan for: Circles | Terms and Definations

Activity overview:

Circles | Terms and Definations

Circles Terms and Definations:
The following video defines the tangent of a circle.

00:01 Q1. How many tangents can a circle have ?
(i) The centre of a circle lies in of the circle. (exterior/ interior)
00:25 Regions of Circle.(Exterior region and Interior region).
00:45 (ii) A point, whose distance from the centre of a circle is greater than its radius lies in of the circle. (exterior/ interior)
01:45 (iii) The longest chord of a circle is a of the circle.
01:54 Defination Diameter of a circle.
02:35 (iv) An arc is a when its ends are the ends of a diameter.
02:55 Defination of Semi-circle.
03:12 (v) Segment of a circle is the region between an arc and of the circle.
03:26 (vi) A circle divides the plane, on which it lies, in parts.

03:54 Q2. Write True or False: Give reasons for your answers.
(i) Line segment joining the centre to any point on the circle is a radius of the circle.
04:26 (ii) A circle has only finite number of equal chords.
05:00 (iii) If a circle is divided into three equal arcs, each is a major arc.
05:06 Major Arc & Minor Arc
05:44 (iv) A chord of a circle, which is twice as long as its radius, is a diameter of the circle.
05:54 Defination of Chord , Diameter .
06:05 (v) Sector is the region between the chord and its corresponding arc.
06:14 Defination of Sector , Segment.
06:50 (vi) A circle is a plane figure.

Follow us on Google Plus:
Like us on Facebook:
Follow us on twitter

In this video, students learn the definitions of a circle, a radius, a chord, a diameter, a secant, a tangent, congruent circles, concentric circles, an inscribed circle, and a circumscribed circle. Students are then asked to identify or draw these figures in given problems.

For more Videos Visit

Reference book for the above video is
National Council of Educational Research and Training (NCERT) Book for Class 9 Subject: Maths
This Video is also refers as CBSE Class 9 mathts NCERT Solutions Chapter 10 Circles Ex 10.1

Tagged under: GyanPub,ncert solutions,Free Online Maths Class,Maths,Free ncert solutions,CBSE Class 9 mathts NCERT Solutions Chapter 10 Circles Ex 10.1,Terms Definations,Circles

Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.

Add multiple choice quizzes, questions and browse hundreds of approved, video lesson ideas for Clip

Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans

Play this activity

1. Students enter a simple code

2. You play the video

3. The students comment

4. You review and reflect

* Whiteboard required for teacher-paced activities

Share on:

Share Circles | Terms and Definations on Google+ Share Circles | Terms and Definations on Twitter Share Circles | Terms and Definations on Facebook Pin Circles | Terms and Definations Email Circles | Terms and Definations

Ready to see what else Spiral logo can do?

With four apps, each designed around existing classroom activities, Spiral gives you the power to do formative assessment with anything you teach.


Carry out a quickfire formative assessment to see what the whole class is thinking


Create interactive presentations to spark creativity in class

Team Up

Student teams can create and share collaborative presentations from linked devices


Turn any public video into a live chat with questions and quizzes

1000s of teachers use Spiral to deliver awesome, engaging activities that capture students' understanding during lessons.

Now it's your turn Sign up

Spiral Reviews by Teachers and Digital Learning Coaches

Review of Spiral by teacher: Kathryn Laster @kklaster

Tried out the canvas response option on @SpiralEducation & it's so awesome! Add text or drawings AND annotate an image! #R10tech

Review of Spiral by teacher: Room 220 Math Stars @3rdgradeBCE

Using @SpiralEducation in class for math review. Student approved! Thumbs up! Thanks.

Review of Spiral by teacher: Miss Ord @ordmiss

Absolutely amazing collaboration from year 10 today. 100% engagement and constant smiles from all #lovetsla #spiral

Review of Spiral by teacher: Adam J. Stryker @strykerstennis

Students show better Interpersonal Writing skills than Speaking via @SpiralEducation Great #data #langchat folks!

Review of Spiral by teacher: Dr Ayla Göl @iladylayla

A good tool for supporting active #learning.

Review of Spiral by teacher: Brett Erenberg @BrettErenberg

The Team Up app is unlike anything I have ever seen. You left NOTHING out! So impressed!

Get the Clip Chrome Extension & Create Video Lessons in Seconds

Add Clip to Chrome