2. Area.

Question 0

1. Units of measurement. (Area).
   1 sq. mi. - ? sq. km. - ? acre - ? hectare.
   1 hectar - ? ar. - ? sq. m. - ? acres.
   1 ar. - ? sq. m.
   1 acre - ? sq. ft. - ? sq. mile - ? hectares.
   1 sq ft. - ? sq. in. -? sq. m.

Answer 0

1 sq. mi. - 2.59 sq. km. - 640 acr = 259 hectare.
1 hectar - ?100? ar. - 2.4711 acres. - 10,000 sq. m.
1 ar. - 100 sq. m.
1 acre - 43,560 sq. ft. = 0.0016 sq. mile - 0.4047 hectars.
1 sq ft. - 144 sq. in. - 0.0929 sq.m.

Question 1

1. Ratio of the squares of the diameters?

Answer 1

A1/A2=(D1xD1)/(D2xD2)