Question

A boy starts at A and walks 3km east to B,he they walks 4km north to C,find the distance and bearing of C

Answer 1

The answer is "5 km".

Explanation:

The right triangle will best represent this distance model. Its legs AB and BC and the hypotenuse AC. Through plugs through into Pythagorean theorem the known values,

`\to a^2 + b^2 = c^2\\\\\to 3^2 + 4^2 = c^2\\\\ \to 9 + 16 = c^2\\\\ \to 25= c^2 \\\\\to c=5`