Answered

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A 12-m ladder is leaning against a wall.
The foot of the ladder is 3 m from the base of
the building. How far up the wall is the top
of the ladder?

Sagot :

GeorgePP

Answer:

Step-by-step explanation:

Use Pythagorean's Theorem for a right triangle. Your best bet when learning/visualizing word problems is to draw a picture, then learn how to visualize in your head over time.

[tex]3^2+x^2=12^2\\9+x^2=144\\x=\sqrt{135}[/tex]

The radical can be further simplified because 135 is the product of 9 and 15. 9 has a perfect root of 3.

[tex]x=3\sqrt{15}[/tex] meters or 11.62 meters

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