Question

A fish in water looks at a bird vertically above in the air . If y is the height of the bird and x is depth of fish from the surgace , then the distance of bird as estimated by fish is

Answer 1

To find the distance of Bird from point of reference of Fish.

Let Position of Fish be '0'

Distance from Fish to surface of water = x

Distance from surface of water to Bird = y

Therefore Distance from Fish to Bird = x + y