Question

Count the number of triangles in given figure.

Answer 1

Count the number of triangles in the side of the given figure.

Total Number of triangles $=\frac{n(n+2)(2n+1)}{8}$ where, $n=$ number of triangles in sides

$=\frac{4(4+2)(2\times 4+1)}{8}=\frac{4\times 6\times 9}{8}=27$