• Save
Circles
Upcoming SlideShare
Loading in...5
×
 

Like this? Share it with your network

Share

Circles

on

  • 225 views

 

Statistics

Views

Total Views
225
Views on SlideShare
225
Embed Views
0

Actions

Likes
0
Downloads
0
Comments
0

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

Circles Presentation Transcript

  • 1. The CircleBy Ranjana
  • 2. O ACIRCLEEg. ball,bangle,lemon.coin
  • 3. OACENTRE : ORADIUS : OABCENTRERADIUS
  • 4. .OIn a plane,each point of the circle is at equaldistance from a fixed point.The fixed point iscalled the centre of the circle.CENTRE = O
  • 5. OThe distance from centre to any point on thecircle is called radius of the circle.ARADIUS = OARadius
  • 6. .ODIAMETERA Line segment passing through the centre ofthe circle and whose end points lie on the circleis called the diameter of the circle.ABDIAMETER = AB
  • 7. .OThe length of the circle or the distancearound it is called circumference of thecircle.
  • 8. .OA BA Line segment whose both the ends touchesthe circumference and passes through thecentre is called diameter.DIAMETER : AB
  • 9. Relation between radius anddiameter.OA BRADIUS = DIAMETER2OB = AB2
  • 10. Eg. If diameter of the circle is 10 cm then findits radius?.ODiameter = 10cmSol. Radius =diameter / 2radius=10 cm/ 2radius =5 cmA B
  • 11. .OEg. If radius of the circle is 6 cm,then find thediameter of the circle?Radius = 6cmASol. Diameter = 2 x RadiusDiameter = 2 x 6cmDiameter = 12 cm
  • 12. RELATION BETWEEN CIRCUMFERENCE ANDDIAMETER.ODIAMETERCIRCUMFERENCE = 3 x DIAMETER(APPROX)A B
  • 13. Eg. Find the circumference (approx) of the circle whosediameter is 10cm..ODIAMETER=10 CMSol. Circumference = 3 xdiameter(approx)Circumference = 3 x 10 cmCircumference = 30 cmAB
  • 14. EVALUATION1. what is the relation between radius and diameter of thecircle?.OA B2. What is the relation between circumference and diameterof the circle?3. In this figureSol .Radius=diameter/2Sol. Circumference=3Xdiameter(approx)radiusdiametercentreAB is ________.O is _________.OA or OB is ______.
  • 15. This powerpoint was kindly donated towww.worldofteaching.comhttp://www.worldofteaching.com is home to over athousand powerpoints submitted by teachers. This is acompletely free site and requires no registration. Pleasevisit and I hope it will help in your teaching.