Question

9r-6-LLFE4r + 19D8r+3What is the value of r?What is the length of segment EF?✓units

Answer 1

Let's equate the congruent sides.

$\begin{gathered} 9r-6=8r+3 \\ r=9 \end{gathered}$

Now, the segment EF is equal to the segment CD:

$4r+19=4\cdot9+19=55$