How we worked it out
Updated as you change the numbers.
- Height = distance × tan(angle) + eye height = 60 × tan(40°) + 5.5.
Method and assumptions
This is right-triangle trigonometry. It assumes level ground and a tree that isn’t leaning; for best accuracy stand about as far away as the tree is tall, where the angle is near 45°.
Questions
How tall is a tree 60 ft away with a 40° angle to the top?
About 55.8 ft with a 5.5 ft eye height.
Sources
Method and figures checked on . Every worked answer on this page is covered by an automated test. Found a mistake? Tell us.