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January 25, 2015

January 25, 2015

Posted by **Danielle** on Tuesday, March 25, 2008 at 12:25am.

1. Angle of Depression: A Global Positioning System satellite orbits 12,500 miles above Earth's surface. Find the angle of depression from the satellite to the horizon. Assume the radius of Earth is 4000 miles.

2. Geometry: A regular hexagon (a hexagon with congruent sides and angles) is inscribed in a circle of radius 25 inches. Find the length of the sides of the hexagon.

- Math -
**drwls**, Tuesday, March 25, 2008 at 1:36am1. Measured from the vertical direction to the center of the Earth, the horizon is at angle sin^-1 (4000/16,500)

2. The side length of a hexagon is the radius of the circle in which it is inscribed.

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