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The length of the ladder

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1 Answer

Hi Craig;
 
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|
|
24
feet
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|____18 feet
 
 
This is a right triangle in that one angle is 90-degrees.
a2+b2=c2
 
(18)2+(24)2=c2
 
324+576=c2
900=c2
square root(900)=c
30=c
The ladder must be 30-feet tall.