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| PAGE: 81 | SET: Exercises | PROBLEM: 29 |
The Washington Monument is 
tall and weighs 
.
The monument is topped by an aluminum square pyramid.
The sides of the pyramids base measure 
, and the pyramid is 
tall.
Find the slope that a face of the pyramid makes with its base.
.
Consider the ordered pairs 
and 
.
(Formula for slope)
(Substitute 
and 
)
(Simplify)
(Simplify)
Therefore, the slope is 
.
So, the slope that a face of the pyramid makes with its base is about either 
or 
.
The slope that a face of the pyramid makes with its base is 
.
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