Answer:
Step-by-step explanation:
Sarah swam the diagonal length of a right-angled triangle with sides of river width, 193m and how far she was swept downstream, 67m.
By Pythagorean Theorem, distance swam = sqrt(193^2+67^2)
= 204.3 m
Apply Pythagorean theorem
[tex]\\ \rm\rightarrowtail H^2=P^2+B^2[/tex]
[tex]\\ \rm\rightarrowtail H^2=193^2+67^2[/tex]
[tex]\\ \rm\rightarrowtail H^2=41738[/tex]
[tex]\\ \rm\rightarrowtail H=204ft[/tex](Approx)