Question

Given that RT | | AC, SR = 10, SC = 4, and CT = 4, find SA

Answer 1

We have the following:

We can calculate this by means of the following proportion

$\frac{SA}{SR}=\frac{SC}{ST}$

replacing:

$\begin{gathered} \frac{SA}{10}=\frac{4}{4+4} \\ SA=\frac{10\cdot4}{8} \\ SA=5 \end{gathered}$

Therefore, SA is equal a 5