Ladder wall height

A ladder is 7 meters long and is leaning against a wall so that its lower end is 4 meters away from the wall. Determine how high the ladder reaches

Final Answer:

y =  5.7 m

Step-by-step explanation:

c=7 m a=4 m  c2= a2+y2  y=c2a2=7242=33=5.7 m



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