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 pathagorean Therom

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 A radio station is going to construct a 12 foot tower for a new antenna on top of a tall building. The tower will be supoorted by three cables, each attached to the top of the tower and to points on the roof of the building which are 5 feet from the base of the tower. What is the total lenght of these three cables?

 

A. 13 feet 

B. 39 Feet

C. 42 feet 

D. 51 feet

 Aug 15, 2015

Best Answer 

 #1
avatar+33616 
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Each cable is 13 ft (because √(5^2 + 12^2) = 13) so total length = 3*13 ft = 39 ft

.

 Aug 15, 2015

3+0 Answers

 #1
avatar+33616 
+10
Best Answer

Each cable is 13 ft (because √(5^2 + 12^2) = 13) so total length = 3*13 ft = 39 ft

.

Alan Aug 15, 2015
 #2
avatar
+5

Diagonal^2 = 5^2 + 12^2

=25+144

=169

Cable length = 169 ^ (1/2)=13

Sum = 13*3= 39 feet

N.T

 Aug 16, 2015
 #3
avatar
0

13 feet

 Aug 16, 2015

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