NDA2015General AbilityGeneral ScienceActual
When the sun is 30° above the horizon, shadow of one tree is 17.3 m long. What is the height of this tree ?
Options
- A20 m
- B17.30 m
- C10 m
- D1.73 m
Correct answer
C. 10 m
Step-by-step solution
From trigonometry 30^ = height of free AB BC Height of tree, AB = 30^ BC = 1 3 17.3=10 ~cm