SOLUTION: Hi - Please help. My son has a problem on a worksheet that I cannot help him figure out. An 18 Ft ladder is leaning against a wall. If the base of the ladder is 9 Ft from the wall

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Question 75524This question is from textbook McDougal Littell Middle School Math Course 2 2004
: Hi - Please help. My son has a problem on a worksheet that I cannot help him figure out. An 18 Ft ladder is leaning against a wall. If the base of the ladder is 9 Ft from the wall, how far up the wall will the ladder reach? Thank You!! This question is from textbook McDougal Littell Middle School Math Course 2 2004

Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
USING THE PATHAGORIAN FORMULA A^2+B^2=C^2. WE GET:
9^2+X*2=18^2
81+X^2=324
X^2=324-81
X^2=243
X=15.588 FEET IS THE DISTANCE UP THE WALL THE LADDER REACHES.