Plane Trigo - Angle of Elevation 1
Автор: enJEneAR
Загружено: 2026-02-12
Просмотров: 39
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from CELE Nov 2019, May 2022
Problem: In hilly or mountainous terrain, it is often difficult to determine heights. There are two problems: first, it may be impossible to find an expanse of level ground from which measurements can be taken. Second, sighting may be limited. That is, points of reference such as mountain peaks may be visible only from certain places. Geologist took measurements at two points B and C, 928 m apart. The angle of elevation from B to the top of the mountain A is 47°10’. The angle of elevation from C to B is 8°40’ and the angle of elevation from C to A is 32°30’. It is known that the elevation at C is 1537 m. What is the elevation at A?
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