Question. Is there a problem? Either I am stupid or the following two answers are incorrect:

1.5? - 1? = 1.25 root number =1.181.118 * 2 = 2.236.

2.236 * 4+(4+7)/2 * 2.2 * 2 = 33.144 square decimeter.

or

(1.5+5) * 2.5/2+(3+4) * 2.2/2 * 2 = 31.65 square decimeter.