JEE Advanced Mathematics question
Not in JEE syllabus
A vertical lamp-post of height 9 metres stands at the corner of a rectangular field. The angle of elevation of its top from the farthest corner is , while from another corner it is . The area of the field is
Answer: (A)
Solution
The farthest corner is the opposite end of the diagonal; "another corner" is an adjacent corner (end of a side).
- Diagonal m. -
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