Find my height!
Geometry
Level
pending
I am standing 12 ft to the right of a lamp post which is 12 ft tall. My shadow is created on the ground due to the lamp of the lamp post. This shadow is 12 ft long. I then move to a point which is 6 ft away to the left of the lamp post. My shadow is now 6 ft in length. What is my height?
5 ft 8 inches
6 ft
6 ft 1 inch
5 ft 11 inches
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
Refer to the figure above.
Use similar triangles. There are two sets of similar triangles here. Ratio of sides is 1:2.
Triangle 1: x/12=12/24. Therefore x=6
Triangle 2: x/12 = 6/12. x=6.
Answer: 6 ft