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A 24​-foot ladder is placed against a vertical wall of a​ building, with the bottom of the ladder standing on level ground 18 feet from the base of the building. How high up the wall does the ladder​ reach?

Respuesta :

Answer: h≈ 16 feet

Step-by-step explanation:

All se need to do is to find the height, from the diagram , pythagoras theorem will be applied to fing the height.

Pythagoras theorem states that :

[tex]hypotenus^{2}[/tex] = [tex]opposite^{2}[/tex] + [tex]Adjacent^{2}[/tex]

From the diagram , Hypotenus = 24 , the other sides are 18 and the unknown height.

Let the unknown height be h , then by pythagoras theorem

[tex]24^{2}[/tex] = [tex]h^{2}[/tex] + [tex]18^{2}[/tex]

576 = [tex]h^{2}[/tex]   + 324

colloecting the like terms , we have

[tex]h^{2}[/tex]  = 576 - 324

[tex]h^{2}[/tex]  = 252

h = [tex]\sqrt{252}[/tex]

h = 15.87

h≈ 16 feet

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Answer:

The answer is h≈ 16 feet. Hope this helps.