SOLUTION: You travel around the equator and you head travels 40 ft further than the bottom of your feet. How tall are you?

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Question 518012: You travel around the equator and you head travels 40 ft further than the bottom of your feet. How tall are you?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

When you walk on level ground, your head and feet travel the same distance, but when you walk over hills, your head actually travels farther.
In this case, your head travels 40ft further, then:
2%2Api%2A%28r%2Bh%29+-+2%2Api%2Ar+=+40ft
2%2Api%2Ar%2B2%2Api%2Ar%2Ah+-+2%2Api%2Ar+=+40ft
2%2Api%2Ah+=+40ft
h+=+40ft%2F%282%2Api%29+=40ft%2F6.28=+6.36ft