Question

A boy starts from a point A and walks 4 km due east to B. He then changes direction and walks 3 km due north to C. Find the distance of C from A.​

Answer 1

Distance C from A =5km

Explanation:

use the Pythagoras theorem's

{AC}^{2} = {BC}^{2} + {AB}^{2}

AC=✓3^2 + 4^2

AC = ✓9+16

AC = ✓25

AC = 5 km

therefore, C from A = 5 km