To find the height of Delicate Arch in Arches National Park in Utah, a surveyor levels a theodolite with the bottom of the arch. From there, she measures the angle of elevation to the top of the arch omegle (link, that didn't even work, removed)
She then measures the distance from where she stands to a point directly under the arch. Her results are shown in the diagram.
What is the height of the arch?
