A plane flies northward for 430km, it then flies eastwards for 380km.How far is it from the starting point?

3 answers

you have two sides of a right triangle ... the distance is the hypotenuse

a^2 + b^2 = c^2
solve it
c² =a² + b²
c² =430² + 380²
c²=184900 + 144400
c²=329300
square root both side
√c²=√329300
c=573.8466694
Approximately
c=574km