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OpenStudy (anonymous):
An aircraft is vertically above a point which is 10 km west and 15 km north of a control tower. If the aircaraft was 4000m above ground, how far is it from the control tower?
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OpenStudy (anonymous):
|dw:1335356470746:dw|
OpenStudy (anonymous):
control tower is at A and aircraft is 4000m above C AC is the distance between tower and a point directly below the aircraft length of AC = sqrt(10^2 + 15^2) = sqrt325 so we have the following triangle
OpenStudy (anonymous):
|dw:1335356763998:dw|
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