Answer:
using Pythagoras theorem we have
![x^{2} =24^{2}+7^{2}\\x^{2} =144+49\\x^{2} =193\\x=\sqrt[]{193} \\x=13.89km](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%3D24%5E%7B2%7D%2B7%5E%7B2%7D%5C%5Cx%5E%7B2%7D%20%3D144%2B49%5C%5Cx%5E%7B2%7D%20%3D193%5C%5Cx%3D%5Csqrt%5B%5D%7B193%7D%20%5C%5Cx%3D13.89km)
Step-by-step explanation:
step 1 : draw the diagram based on the question.
you draw a line upward 13km and draw another one to the right 24km then draw another one down 6km, now you join the the last line to the original starting point.
Step 2: after drawing the diagram above you should draw a doted line from the end of the last line due south to bisect the first line due north and label the line 24km also since it forms a rectangle.
step 3: it now forms a right-angled triangle at the bottom then you apply the Pythagoras theorem