Cape Canaveral, Florida is where NASA launches rockets into space. As modeled in the diagram below, a person
views the launch of a rocket from observation area 4, 3280 feet away from launch pad B. After launch, the rocket
was sighted at C with an angle of elevation of 15°. The rocket was later sighted at D with an angle of elevation of
31°.
A
319
Th
15
3280 ft
D
C
B
Determine and state, to the nearest foot, the distance the rocket traveled between the two sightings, C and D.