∴ The angles formed by the length of light and shadow are equal; The flagpole and bamboo pole are at right angles to the shadow length,

The triangle formed by PD and DB is similar to the triangle formed by flagpole and shadow length.

Let the height of flagpole be xm, and set the equation according to the meaning of the question.

1/ 15 =(x-2)/2 1，

The solution is x = 16.

Answer: The height of the flagpole is 16m. ..