Question 659682
I can't read german, but maybe I can help.
First you need the formula for the area of a circle;
(1) A = pi*r^2, where r is the radius of the circle.
You have three cicles whose areas are
(2) A1 = pi*8^2
(3) A2 = pi*14^2
(4) A3 = pi*r^2
The problem is to find the sum of these three circles so add them up as
(5) Atotal = pi*(64 + 196 + r^2) or
(6) Atotal = pi*(260 + r^2)
This is the so called polynomial.
Answer: The polynomial is pi*r^2 + 260*pi.