28. A boy standing on a horizontal plane fuicts a bird flying at a distance of 100 m from him at anelevation of 30°. A girl standing on the roof of a 20 m high building, finds the angle of elevationof the same bird to be 45o. Both the boy and girl are on the opposite sides of the birds. Find thedistances of the birds from the girl.

28. A boy standing on a horizontal plane fuicts a bird flying at a dis

1.	28. A boy standing on a horizontal plane fuicts a bird flying at a distance of 100 m from him at anelevation of 30°. A girl standing on the roof of a 20 m high building, finds the angle of elevationof the same bird to be 45o. Both the boy and girl are on the opposite sides of the birds. Find thedistances of the birds from the girl.
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