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Area formulas can be found at "Reference
Table for Areas".
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Let's pick
up some hints for those more challenging problems involving area
... |
| 1. |
Find the
area. |
Be careful of
problems that give "extra" information. In this
problem, the 24 is NOT needed to compute the area.
 
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| 2. |
Find the
area of
parallelogram ABCD
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When working
with parallelogram problems, be sure that the height you are
using is in fact perpendicular (makes a right angle) to the base
(side) you are using. In this problem, 8 is the base and 9
is the height. The side of 10 is not used in this area.
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| 3. |
Find the
area. |
It may be
necessary, when working with an obtuse triangle, to look outside
the triangle to find the height. Notice how the height is
drawn to an extension of the base of the triangle.
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| 4. |
Find the
area of the circle. Round answer to nearest tenth. |
When working
with circles, be sure that you are using the radius. In
this diagram, 10 is the diameter. The radius is half of
the diameter.
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| 5. |
Find the
area of this trapezoid. |
When working
with a trapezoid, the height may be measured anywhere between
the two bases. Also, beware of "extra"
information. The 35 and 28 are not needed to compute this
area.
 
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| 6. |
Find the area of the
rectangle. |
Some problems
may require that you find an additional piece of information BEFORE
finding the area. This problem expects you to use the
Pythagorean Theorem to find the base of the rectangle BEFORE
finding the area.
 
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