the circular well has a circumference 440 cm. if something will be made to cover the well, then the minimum area of the cover is ... A. 0,154 B. 1,54 C. 15,4 D.

circumference of circle = 2*π*r
440cm = 2*22/7*r
hence, r = 440*7/(2*22) = 70cm

the area of cover needed is the same area with that well, in a minimum amount.

so,
Area = π*r*r
22/7*70*70
= 15.400cm² ✔️

hence, the minimum area of the cover is 15.400cm² ✔️
or in meters ² is = 1,54m²
so the answer is B

hope this is clear and helpful