Posted by **Millie** on Monday, October 10, 2011 at 4:58pm.

The summit of a mountain, 2075 m above base camp, is measured on a map to be 4585 m horizontally from the camp in a direction 32.4° west of north. Choose the x axis east, y axis north, and z axis up. What are x, y, and z?

- vectors -
**Steve**, Monday, October 10, 2011 at 5:32pm
They are distances east, north, and up.

Oh, you mean the (x,y,z) coordinates of the mountain summit?

We know z = 2075. (letting the base camp be at (0,0,0))

Now it's just a 2-d problem.

x = 4585 cos 122.4 = -4478

y = 4585 sin 122.4 = 3871

(x,y,z) = (-4478,3871,2075)

For extra points: how far is it directly from base camp to the summit?

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