A boy 5

A boy starts at A and walks 3km east to B. He then walks 4km north to C. Find the bearing of C from A.

Correct answer:

φ =  36.8699 °

Step-by-step explanation:

e=3 km n=4 cm  tanφ=e:n=3:4=43=0.75  Φ=arctan(e/n)=arctan(3/4)0.6435 rad  φ=Φ  °=Φ π180   °=0.6435 π180   °=36.87  °=36.8699=36°5212"

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