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Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
Rajuk uttara model college md saifur rahman
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Rajuk uttara model college md saifur rahman

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  • 1. MD Saifur Rahman Lecturer (Mathematics) RAJUK Uttara Model College
  • 2. Welcome To Math Class
  • 3.  
  • 4. (a +b) 2 = a 2 + 2ab + b 2 (a -b) 2 = a 2 - 2ab + b 2 (a +b) 3 = a 3 + 3a 2 b + 3ab 2 +b 3 (a -b) 3 = a 3 - 3a 2 b + 3ab 2 -b 3 Area of circle  r 2 Circumference of circle 2  r Surface area of cone  rl Volume of cylinder  r 2 h Volume of cone 1/3  r 2 h Surface area of cylinder 2  rh +  r 2
  • 5. Bangladesh Parliament Nehru centre
  • 6. Cylinder
  • 7. Yakhchal of Yazd province
  • 8. Cone
  • 9.  
  • 10. Learning Outcomes Students will be able to Measure the surface area of a cylinder and a cone Find out the volume of a cylinder and a cone Identify the shape of the surface of a cylinder and a cone
  • 11. Identify Cone and Cylinder shapes in the following Rocket Glass Tent Water Tank
  • 12. How many surfaces are there ? How many parts are there to color in this candle ?
  • 13.  r 2  r 2 2  r h 2  rh Surface Area
  • 14. h Radius, r Volume = Area of base × height =  r 2 × h
  • 15. The length and the breadth of a book is 25 cm and 15 cm. When it revolves around the greatest side then find the surface area and volume of that solid. 25 cm 15 cm Problem : 1 ( Pair work)
  • 16. Greatest side Rectangle Cylinder
  • 17. ` Height, h Radius, r Slant length, l Slant length, l Circumference , 2 πr
  • 18. Slant length, l Slant length, l a a b c d e f g h i j k l m n o p q Total Area = ½ la + ½ lb + ½ lc +……………….+ ½lq Total Area = ½ l (a + b + c + d+ ….. +q) Total Area = ½ l ( 2 πr ) = πlr Area = Area =  Base  Height  l  a
  • 19.  rl Surface Area  r 2
  • 20. Volume
  • 21. Two sides of a right angle triangle are 5 cm and 3.5 cm. If the triangle revolves around its longest side then find the surface area and volume of the solid shape formed. 5 cm 3.5cm Problem : 2 (Individual Work)
  • 22. Right angle triangle Cone
  • 23. Group Work The height of a cone-shaped tent is 7.5 m. How much canvas is needed to cover 2000 square metres of land?
  • 24. Home Work Every student should create a problem related to a Cone or Cylinder & bring it to the next class so other students can try to solve it.
  • 25. http://www.youtube.com/watch?v=WCqrWM261r0 www.google.bd.com/image Acknowledgement
  • 26. Thanks All To

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