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Mathematics 4 Online
OpenStudy (anonymous):

Please help me with this Geometry question? I have a hard time with word problems and don't really understand how to do this one: Kilimanjaro, the tallest mountain in Africa, is 19,340 feet tall. From the summit of Kilimanjaro, what is the greatest distance you can see (the distance from the top of Kilimanjaro to the horizon)? Answer to the nearest mile. (Hint: Earth's radius = 4000 miles, and 5280 feet = 1 mile.)

ganeshie8 (ganeshie8):

draw it out

ganeshie8 (ganeshie8):

|dw:1373781080804:dw|

ganeshie8 (ganeshie8):

from the summit, draw a tangent to the circle, representing horizon

ganeshie8 (ganeshie8):

|dw:1373781303954:dw|

ganeshie8 (ganeshie8):

|dw:1373781338567:dw|

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