Fis analytic on unit disk and satisfies f(2z) = 2f(z)f'(z). prove that f is restriction of unit disk of an entire function

his first public project he is asked to create a small scale drawing. the garden is a right triangle with base 25m and height 30m. are you trying to solve for the last side/hypotenuse? the irrational form of the answer would be 5\sqrt{61}