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Sagot :
Answer:
8√2 feet
Step-by-step explanation:
We solve the above question using the Pythagoras theorem
Laura has a 12-foot ladder. The safety instructions recommend the
base of the ladder be placed 4 feet from the base of the wall.
Hypotenuse² = Opposite ² + Adjacent ²
Hypotenuse = 12ft
Adjacent = 4ft
Opposite = Height = x
Opposite ² = Hypotenuse ² - Adjacent
Opposite = √Hypotenuse ² - Adjacent
Opposite = √12² - 4²
Opposite = √144 - 16
Opposite = √128
Opposite = √64 × 2
Opposite = 8√2 feet
Therefore, the ladder will be 8√2 feet high on the wall
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