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Instructional Video15:56
Curated Video

HARD Geometry Problem: Can You Solve The Horse Grazing Puzzle?

6th - 11th
A horse is tied to an outside corner of a 20 foot by 10 foot rectangular barn. What is the maximum area the horse can graze outside, if the rope has length L? Solve for L = 5 and L = 25 (find exact answers). If you are up for a...
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Instructional Video6:54
Curated Video

Can You Solve Amazon's Hanging Cable Interview Question?

6th - 11th
A cable of 80 meters (m) is hanging from the top of two poles that are both 50 m from the ground. What is the distance between the two poles, to one decimal place, if the center of the cable is (a) 20 m above ground? (b) 10 m above...