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the foot of a rescue ladder is placed 10m away from the base of a burning building. the ladder is then extended 35m so that it can reach the third floor. what angle does the ladder make with the ground?

Guest Jun 1, 2017

Best Answer 

 #1
avatar+4716 
+2

 

cos a = adjacent / hypotenuse

cos a = 10/35

a = arccos(10/35)

a ≈ 73.398º

hectictar  Jun 1, 2017
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1+0 Answers

 #1
avatar+4716 
+2
Best Answer

 

cos a = adjacent / hypotenuse

cos a = 10/35

a = arccos(10/35)

a ≈ 73.398º

hectictar  Jun 1, 2017

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