SURFACE AREA & VOLUME

SURFACE AREA

• It tells you how much wrapping you will need to cover the item.
• Prism S=Ph+2B
• Cylinder S=2(pi)rh+2r^2

VOLUME

• It tells you how much it takes to fill up the item
• Prism-cylinder. V=Bh
• Pyramid-Cone V=1/3Bh
• Sphere. V=4/3(pi)r^3

EXAMPLES OF SURFACE AREA

• Laramee bought a box filed with toys the height of the box was 3ft, width 2ft, and length of 4ft. How much wrapping paper will it take to cover the box of toys.

EXAMPLE OF VOLUME

• A water bed has dimensions of 6ft length ,4ft width, and a height of 42in.how much water will it take to fill up the water bed

ANSWERS

• VOLUME
• 6x4x3.5=84ft
• SURFACE AREA
• 12(3)+2(2x4)=52

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