In triangle $ABC$, $AB=AC$. If there is a point $P$ strictly between $A$ and $B$ such that $AP=PC=CB$, then $\angle A =$
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draw((0,0)--(8,0)--(4,12)--cycle);
draw((8,0)--(1.6,4.8));
label("A", (4,12), N);
label("B", (0,0), W);
label("C", (8,0), E);
label("P", (1.6,4.8), NW);
dot((0,0));
dot((4,12));
dot((8,0));
dot((1.6,4.8));
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$ \textbf{(A)}\ 30^{\circ} \qquad\textbf{(B)}\ 36^{\circ} \qquad\textbf{(C)}\ 48^{\circ} \qquad\textbf{(D)}\ 60^{\circ} \qquad\textbf{(E)}\ 72^{\circ} $
1. Given that \(AB = AC\) in triangle \(ABC\), it implies that \(\triangle ABC\) is isosceles with \(AB = AC\).
2. Let \(\angle BAC = \alpha\). Since \(AB = AC\), the base angles \(\angle ABC\) and \(\angle ACB\) are equal. Let these angles be \(\beta\).
3. Therefore, we have:
   \[
   \alpha + 2\beta = 180^\circ \quad \text{(sum of angles in a triangle)}
   \]
4. Given that point \(P\) is strictly between \(A\) and \(B\) such that \(AP = PC = CB\), we need to analyze the configuration.
5. Since \(AP = PC\) and \(PC = CB\), it implies that \(P\) divides \(AC\) such that \(AP = PC\) and \(PC = CB\). This suggests that \(P\) is a point on \(AC\) such that \(AP = PC\).
6. Let \(\angle PAC = \theta\). Since \(AP = PC\), \(\triangle APC\) is isosceles with \(\angle APC = \theta\).
7. Since \(PC = CB\), \(\triangle PCB\) is also isosceles with \(\angle PCB = \theta\).
8. Therefore, we have:
   \[
   \angle APC = \theta \quad \text{and} \quad \angle PCB = \theta
   \]
9. Since \(\angle APC + \angle PCB = \angle ACB\), we have:
   \[
   \theta + \theta = \beta \implies 2\theta = \beta \implies \theta = \frac{\beta}{2}
   \]
10. Now, considering the entire triangle \(ABC\), we have:
    \[
    \alpha + 2\beta = 180^\circ
    \]
11. Substituting \(\beta = 2\theta\) into the equation, we get:
    \[
    \alpha + 2(2\theta) = 180^\circ \implies \alpha + 4\theta = 180^\circ
    \]
12. Since \(\theta = \frac{\beta}{2}\), we substitute \(\theta\) back:
    \[
    \alpha + 4\left(\frac{\beta}{2}\right) = 180^\circ \implies \alpha + 2\beta = 180^\circ
    \]
13. From the equation \(\alpha + 2\beta = 180^\circ\), we already know that \(\alpha = 180^\circ - 2\beta\).
14. Given that \(\beta = 72^\circ\), we substitute \(\beta\) into the equation:
    \[
    \alpha = 180^\circ - 2(72^\circ) = 180^\circ - 144^\circ = 36^\circ
    \]

The final answer is \(\boxed{36^\circ}\)