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A ladder, 6m long, rests against a wall. The foot of the ladder is 2.5m from the base of the wall. What angle does the ladder make with the ground?

 Jan 11, 2015

Best Answer 

 #1
avatar+130536 
+5

Since we know an adjacent side (2.5) and the hypoteneuse (6) of a right tringle, we can use the cosine inverse to find this..... we have

cos -1 (2.5 / 6 )  = about 65.38°

 

 Jan 12, 2015
 #1
avatar+130536 
+5
Best Answer

Since we know an adjacent side (2.5) and the hypoteneuse (6) of a right tringle, we can use the cosine inverse to find this..... we have

cos -1 (2.5 / 6 )  = about 65.38°

 

CPhill Jan 12, 2015

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