In the figure shown below, $ABCDE$ is a regular pentagon and $AG=1$. What is $FG+JH+CD$?
[asy]
import cse5;pathpen=black;pointpen=black;
size(2inch);
pair A=dir(90), B=dir(18), C=dir(306), D=dir(234), E=dir(162);
D(MP("A",A,A)--MP("B",B,B)--MP("C",C,C)--MP("D",D,D)--MP("E",E,E)--cycle,linewidth(1.5));
D(A--C--E--B--D--cycle);
pair F=IP(A--D,B--E), G=IP(B--E,C--A), H=IP(C--A,B--D), I=IP(D--B,E--C), J=IP(C--E,D--A);
D(MP("F",F,dir(126))--MP("I",I,dir(270))--MP("G",G,dir(54))--MP("J",J,dir(198))--MP("H",H,dir(342))--cycle);
[/asy]
 
$\textbf{(A) } 3
\qquad\textbf{(B) } 12-4\sqrt5
\qquad\textbf{(C) } \dfrac{5+2\sqrt5}{3}
\qquad\textbf{(D) } 1+\sqrt5
\qquad\textbf{(E) } \dfrac{11+11\sqrt5}{10}
$
1. **Identify the given and required quantities:**
   - We are given a regular pentagon \(ABCDE\) with \(AG = 1\).
   - We need to find the sum \(FG + JH + CD\).

2. **Use symmetry and properties of the regular pentagon:**
   - In a regular pentagon, all sides and angles are equal.
   - The diagonals intersect at points that divide them into segments of equal length.

3. **Determine the lengths of segments using symmetry:**
   - Since \(AG = 1\), and \(AG\) is a segment from the center to a vertex, it is a radius of the circumscribed circle.
   - By symmetry, \(JH = IG = IC = AG = 1\).

4. **Express \(CD\) in terms of \(FG\):**
   - Note that \(CD = CJ + JD\).
   - Since \(CJ = CI = 1\) and \(JD = FG\), we have \(CD = 1 + FG\).

5. **Sum the required lengths:**
   - We need to compute \(FG + JH + CD\).
   - Substituting the known values, we get \(FG + 1 + (1 + FG) = 2 + 2FG\).

6. **Use Ptolemy's Theorem to find \(FG\):**
   - Consider the cyclic quadrilateral \(JFGH\).
   - By Ptolemy's Theorem, for a cyclic quadrilateral, the sum of the products of its two pairs of opposite sides is equal to the product of its diagonals.
   - Applying Ptolemy's Theorem to \(JFGH\), we get:
     \[
     JH \cdot FG + JG \cdot FH = JF \cdot GH
     \]
   - Since \(JH = JG = FH = 1\) and \(JF = GH = FG = x\), we have:
     \[
     1 \cdot x + 1 \cdot x = x \cdot x \implies x^2 + x = 1
     \]
   - Solving the quadratic equation \(x^2 + x - 1 = 0\):
     \[
     x = \frac{-1 \pm \sqrt{5}}{2}
     \]
   - Since \(x\) cannot be negative, we take the positive root:
     \[
     x = \frac{\sqrt{5} - 1}{2}
     \]

7. **Substitute \(x\) back into the sum:**
   - We have \(FG = x = \frac{\sqrt{5} - 1}{2}\).
   - Therefore, the sum is:
     \[
     2 + 2 \left( \frac{\sqrt{5} - 1}{2} \right) = 2 + (\sqrt{5} - 1) = 1 + \sqrt{5}
     \]

The final answer is \(\boxed{1 + \sqrt{5}}\).