To find the number of triangles in the given figure, we need to examine the structure systematically. The figure is a star formed by intersecting lines.

1. Identify Individual Triangles: Start by counting the smallest triangles in the figure:
   • Each triangular segment formed by the intersection of the star's lines contains 5 small triangles.
2. Identify Larger Triangles: Look for triangles formed by combining these small triangles:
   • There are 5 larger triangles formed by the external arms of the star.
3. Check for Overlapping Triangles: Ensure no overlapping areas are missed:
   • Two triangles overlap to form one larger triangle.

Calculating these, we find:

• 5 small triangles
• 5 larger triangles

Total: 5 (from small triangles) + 5 (from larger triangles) = 10 triangles

Thus, the correct answer is 10.