# Plane II

A plane flew 50 km on a bearing 63degrees20 and the flew on a bearing 153degrees20 for 140km. Find the distance between the starting point and the ending point

Correct result:

x =  148.661 km

#### Solution:

$u=153+20/60-(63+20/60)=90 \ \\ x=\sqrt{ 50^2+140^2 }=10 \ \sqrt{ 221 }=148.661 \ \text{km}$

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