An aircraft is vertically above a point which is 10 km west and 15 km north of a control tower if the aircraft is 4000m above the ground how far is it from control tower?
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√341 km
Step-by-step explanation:
first find the ground distance between tower and aircraft
so, it will be
√(10^2+15^2) (Pythagoras theorem)
=5√13
now find out the air distance
so, here 5√13 will be one side of right angled triangle and 4000m= 4 km will another one
so,
√((5√13)^2+ (4)^2)
=√(325+16)
=√(341 km)
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