Question

Given the same figure as in the previous question, what is BC?

Answer 1

Answer:

using Thales theorem, we have:

$\frac{17}{bc} = \frac{12}{12 + 8} \\ < = > \frac{17}{bc} = \frac{12}{20} = \frac{3}{5} \\ \\ < = > bc = \frac{17 \times 5}{3} = \frac{85}{3} = 28.3$

=> BC = 28 feet 4 inches