Geometry and TrigonometryEasyHeight a ladder reaches
Geometry and Trigonometry practice question
A ladder 10 feet long leans against a wall with its foot 6 feet from the base of the wall. How high up the wall, in feet, does the ladder reach?
Answer: 8
√(10² − 6²) = √64 = 8.
Common wrong answers
- If you answered 4
- 4 subtracts 6 from 10.
- If you answered 16
- 16 adds 10 and 6.
- If you answered 11.7
- 11.7 adds the squares.
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