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Anna is hiking on a mountainside that rises at a 15 degree angl she walks 1500 feet along the slope find her change in elevation to the nearest foot?
Wiki User
∙ 12y ago
Please excuse the horrible ascii graphics (I know the angle is nothing like 15°), but this is easier with a diagram:
................./|
................/ |
............../.. |
1500 ft /.... |
........../...... |
......../........ | E
....../.......... |
..../............ |
../.............. |
/15°.......... |
----------------
E = change in elevation
sin = opposite / hypotenuse
sin(15°) = E / 1500
so, E = 1500 * sin(15°) = approx 388.23
To the nearest foot, change of elevation = 388 feet
Wiki User
∙ 12y ago
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