Pre-Calculus

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A jet leaves an airport on a bearing of N 77* W and travels for 243 mi. It then turns and continues on a bearing of S 13* W for 104 mi. Find how far the jet is from the airport to 3 decimal places.

  • Pre-Calculus -

    If you make a sketch you will find that when the jet makes the turn, its new path is at 90° to its original path, so we have a right-angled triangle

    d^2 = 243^ + 104^2
    = ....
    d = √..... =

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