Area of Surface and Volume

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• Area of Surface and Volume
• of
• Three-Dimensional Objects

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Surface Area and Volume of Three-Dimensional
Object
The surface area of a three-dimensional object is
the sum of area of each side of the object.
Surface area is measured in square units such as



square feet (ft2), square yards (yd2), square
meters (m2), square kilometers (km2), etc.
The volume of a three-dimensional object is the
measure of the space enclosed by a object.
Volume is the measured in cubic units such
as cubic feet (ft3), cubic yards (yd3), cubic
meters (m3), cubic kilometers (km3), etc.
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FormulasTotal Surface Area SA, Volume V
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FormulasTotal Surface Area SA, Volume V
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FormulasTotal Surface Area SA, Volume V
sum of the areas of the faces
,where B is the area of the base
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Exercises

1. Find the surface area and the volume for each
   figure.

a)
b)
c)
e)
d)
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Exercises

1. A building contractor is to dig a foundation 12
   ft long, 9 ft wide, and 6 ft deep for a
   tollbooth. The contractor pays 10 per load for
   truck to remove dirt. Each truck holds 6 cubic
   yards. What is the coast to the contractor to
   have all dirt hauled away?

1. The diameter of the tennis ball is 6.5 cm. Find
   the volume of the ball.