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A ladder is (13) m long and its foot is (5) m from the wall. If the foot is moved (7) m farther away, by how many metres will the top come down?
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Answer and explanation
Correct answer: (5) m
The first height is (\sqrt{13^2-5^2}=12) m. With new distance (12) m, height is (5) m, so the fall is (12-5=7) m.
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What is the correct answer to this question?
(5) m
Why is this the correct answer?
The first height is (\sqrt{13^2-5^2}=12) m. With new distance (12) m, height is (5) m, so the fall is (12-5=7) m.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Quadratic Equations. Topic: Word Problems and Applications.
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