Question

In a human nose, the total area of the region that detects our odors is about ¾ in^2. Compare that to the sensory organ of a hunting dog, whose nose has an active area of about 65 cm^2.

Answer 1

Let it be x

`\\ \sf\longmapsto (3)/(4)x=65`

`\\ \sf\longmapsto x=65* (4)/(3)`

`\\ \sf\longmapsto x=(260)/(3)`

`\\ \sf\longmapsto x\approx82`