Descending the hill!

Geometry Level 4

The diagram illustrates a right circular cone shaped like a mountain.

If you build the shortest-distance track for a sightseeing train around the mountain—starting at point A A and ending at point B B —the track will first go uphill but then downhill.

What is the length of the downhill track?

100 91 \frac{100}{\sqrt{91}} 200 91 \frac{200}{\sqrt{91}} 300 91 \frac{300}{\sqrt{91}} 400 91 \frac{400}{\sqrt{91}}

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1 solution

Micah Wood
Nov 11, 2018

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