11. (5 points) As shown in the figure, in $\triangle A B C$, $A B=B C=C A$, $D$, $E$, and $F$ are the midpoints of the three sides, $A D$, $B E$, and $C F$ intersect at point $O$, then there are $\qquad$ triangles in the figure; their areas have $\qquad$ different values.
【Analysis】To find the number of triangles and the different values of their areas, we can discuss the problem by cases, starting from triangles that contain only one small triangle, and the different values of the areas are not difficult to obtain.

【Solution】According to the analysis, it is known from the problem that $A B=B C=C A$, and $D$, $E$, $F$ are the midpoints of the three sides,
(1) Triangles containing only 1 small triangle: 6 triangles, and the area of each triangle is equal, and each is equal to $\frac{1}{6}$ of the area of triangle $A B C$;
(2) Triangles containing 2 small triangles: 3 triangles, and the area of each triangle is equal, and each is equal to $\frac{1}{3}$ of the area of triangle $A B C$;
(3) Triangles containing 3 small triangles: 6 triangles, and the area of each triangle is equal, and each is equal to $\frac{1}{2}$ of the area of triangle $A B C$;
(4) Triangles containing 6 small triangles: 1 triangle, which is triangle $A B C$, in total, there are 16 triangles in the figure; their areas have 4 different values. Therefore, the answer is: 16, 4