SOLUTION: A 10-ft ladder leans against a wall so that the base of the ladder is 4 ft from the wall. How high up on the wall will the ladder reach (to the nearest foot)?

Question 752928: A 10-ft ladder leans against a wall so that the base of the ladder is 4 ft from the wall. How high up on the wall will the ladder reach (to the nearest foot)?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the pythagorean theorem

Plug in the known values, let x be the unknown value, now solve for x

Use a calculator here

Round to the nearest foot (as instructed)

Answer: 9 feet
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