Question

Question in comments

Answer 1

@Michele_Laino

Answer 2

first answer is correct!

Answer 3

second answer, I get:
\[area = \frac{{5 \times 5.5}}{2} = 13.75\]

Answer 4

oh yeah i didnt understand that question

Answer 5

so, third answer:
area=14.14-13.75=...?

Answer 6

please complete the computation

Answer 7

0.39? @Michele_Laino