Surface Area
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Surface Area

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Class Notes on Surface Area formula

Class Notes on Surface Area formula

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Surface Area Surface Area Presentation Transcript

  • Today’s Objective: SWBAT find the surface area of a cylinder.
  • CYLINDERS are made up of:
    • Two Circles
    • One Rectangle
  • To find the Surface Area of a Cylinder, find the area of the three shapes that form a cylinder. BASE BASE LATERAL AREA A=πr 2 A=πr 2 A=l  w A=2πr  w View slide
  • How do we find the length of the rectangle? In a cylinder the length of the rectangle has to perfectly meet the top and bottom circles. We can find the length of the rectangle by finding the circumference of the circle. View slide
  • Put your area formulas together… .
  • CYLINDER
    • SA=2  rh+2  r 2
  • Efficient Can
    • Is one that uses a small amount of metal compared to the amount of food it holds.
  • EFFICIENCY= Surface Area Volume