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Surfacearea
 

Surfacearea

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    Surfacearea Surfacearea 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
    • 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.
    • CYLINDER
      • SA=2  rh+2  r 2
    • Put your area formulas together… .
    • Efficient Can
      • Is one that uses a small amount of metal compared to the amount of food it holds.
    • EFFICIENCY: Surface Area Volume